Items where Subject is "Natural Sciences > Mathematics"

Article

UNSPECIFIED (2024) Contents - At Right Angles: November 2024. At Right Angles (20). p. 1. ISSN 2582-1873

Bharali, Gautam and Biswas, Indranil and D, Divakaran and Jaikrishnan, Janardhanan (2018) Proper holomorphic mappings onto symmetric products of a Riemann surface. Documenta Mathematica. pp. 1-16.

D, Divakaran and Janardhanan, Jaikrishnan (2017) Finiteness theorems for holomorphic mapping from products of hyperbolic Riemann surfaces. International Journal of Mathematics, 28 (7).

Nityananda, Rajaram (2014) Mathematics for the billion. Current Science, 107 (07). pp. 1087-1088. ISSN 0011-3891

Nityananda, Rajaram (2014) Singularities in a teacup: good mathematics from bad lenses. Resonance : Journal of Science Education, 19 (9). ISSN 0973-712X

Nityananda, Rajaram (2014) Vladimir Igorevich Arnold (1937–2010). Resonance: Journal of Science Education, 19 (9). pp. 779-783. ISSN 0973-712X

Shirali, Shailesh (2021) How To Prove It. At Right Angles. pp. 43-48. ISSN 2582-1873

Sircar, Swati (2020) Rewriting math textbooks. Teacher Plus, 18 (5). pp. 68-71. ISSN 0973-778

Vyasanakere, Jayanth and Nityananda, Rajaram (2021) Mathematics of securing a box with a single rubber band. Resonance: Journal of Science Education, 26 (6). pp. 841-850. ISSN 0973-712X

ರಾಮಮೂರ್ತಿ, ಗೋಮತಿ (2021) ಭಾಗಾಕಾರವೆಂದರೆ ಮಕ್ಕಳು ಏಕೆ ಹೆದರುತ್ತಾರೆ? Learning Curve (2). pp. 51-54. ISSN 2582-1644

ಸರ್ಕಾರ್, ಸ್ವಾತಿ (2021) ಗಣಿತ ಮಾಲೆ – ಒಂದು ವಿಮರ್ಶೆ. At Right Angles. pp. 99-101. ISSN 2582-1873

Newspaper Article

Mohan, R (2024) AlphaGeometry and the threat of AI’s takeover of mathematics | Explained. The Hindu.

Monograph

Azim Premji Foundation, (APF) (2023) प्राथमिक कक्षाओं में गणित शिक्षण - भाग 1. Other. Azim Premji Foundation.

Conference or Workshop Item

Dhankar, Rohit The Teaching and Learning of Mathematics. In: Conference.

Articles in APF Magazines

UNSPECIFIED (2018) क्या कभी कोई समान्तर चतुर्भुज समान्तर चतुर्भुज नहीं भी होता है? At Right Angles. ISSN 2582-1873

UNSPECIFIED (2013) कोण को मापे कौन ? At Right Angles. ISSN 2582-1873

UNSPECIFIED (2012) ಆಕಾರ, ಗಾತ್ರ, ಸಂಖ್ಯೆ ಮತ್ತು ವೆಚ್ಚ ಸಿಹಿ ಮಾರಾಟಗಾರನ ತಂತ್ರ ಗಣಿತದ ಮೂಲಕ ವ್ಯಾಪಾರದ ವಿಶ್ಲೇಷಣೆ. At Right Angles. ISSN 2582-1873

UNSPECIFIED (2024) 1 The Point of Mathematics (Whole issue). At Right Angles. ISSN 2582-1873

UNSPECIFIED (2013) Angles and demons. At Right Angles, 2 (2). pp. 33-38. ISSN 2582-1873

UNSPECIFIED (2025) Anno's magic seeds: A review of the story from the perspective of use in the mathematics classroom. At Right Angles (21). pp. 43-46. ISSN 2582-1873

UNSPECIFIED (2024) At Right Angles. At Right Angles (20). pp. 1-88. ISSN 2582-1873

UNSPECIFIED (2022) At Right Angles, Issue 13, July 2022: Contents. At Right Angles (13). ISSN 2582-1873

UNSPECIFIED (2024) At right angles. At Right Angles (19). pp. 1-98. ISSN 2582-1873

UNSPECIFIED (2025) At right angles. At Right Angles (21). pp. 1-80. ISSN 2582-1873

UNSPECIFIED (2025) Back cover. At Right Angles (21). p. 1. ISSN 2582-1873

UNSPECIFIED (2025) Back cover inner. At Right Angles (21). p. 1. ISSN 2582-1873

UNSPECIFIED (2025) Call for Articles. At Right Angles (21). p. 52. ISSN 2582-1873

UNSPECIFIED (2024) Call for Articles! At Right Angles (20). p. 66. ISSN 2582-1873

UNSPECIFIED (2024) A Call for articles: July 2024. At Right Angles. p. 50. ISSN 2582-1873

UNSPECIFIED (2024) Can Javelin Throws be Measured with a Broken Tape? At Right Angles. ISSN 2582-1873

UNSPECIFIED (2025) Content page - At right angle. At Right Angles (21). p. 1. ISSN 2582-1873

UNSPECIFIED (2023) Contents. At Right Angles. vii-viii. ISSN 2582-1873

UNSPECIFIED (2024) Contents - At Right Angles: July 2024. At Right Angles.

UNSPECIFIED (2013) Cousin to Viviani’s theorem = Clough’s conjecture = Clough’s theorem. At Right Angles, 2 (1). p. 1. ISSN 2582-1873

UNSPECIFIED (2023) Editorial. At Right Angles. iii-iv. ISSN 2582-1873

UNSPECIFIED (2023) Editorial Committee. At Right Angles. vi-vi. ISSN 2582-1873

UNSPECIFIED (2025) Editorial committee - At right angle. At Right Angles (21). p. 1. ISSN 2582-1873

UNSPECIFIED (2024) Editorial: November 2024. At Right Angles (20). ISSN 2582-1873

UNSPECIFIED (2024) Editorials. At Right Angles. ISSN 2582-1873

UNSPECIFIED (2024) Editorials: July 2024. At Right Angles. ISSN 2582-1873

UNSPECIFIED (2025) Form IV. At Right Angles (21). ISSN 2582-1873

UNSPECIFIED (2025) From the editors desk . . . At Right Angles (21). pp. 1-2. ISSN 2582-1873

UNSPECIFIED (2025) Front cover inner - At right angle. At Right Angles (21). p. 1. ISSN 2582-1873

UNSPECIFIED (2025) Front cover-At right angle. At Right Angles (21). p. 1. ISSN 2582-1873

UNSPECIFIED (2012) Fun problems. At Right Angles, 1 (2). pp. 63-66. ISSN 2582-1873

UNSPECIFIED (2016) Georg Cantor. At Right Angles, 5 (2). pp. 24-25.

UNSPECIFIED (2020) Introducing Numberphile. At Right Angles (7). pp. 1-2. ISSN 2582 - 1873

UNSPECIFIED (2024) Kite families: an investigation of a family tree! At Right Angles. pp. 51-52. ISSN 2582-1873

UNSPECIFIED (2025) Manipulatives for whole numbers: What to use, when and why? At Right Angles (21). pp. 47-51. ISSN 2582-1873

UNSPECIFIED (2012) Math club - find the next number. At Right Angles, 1 (2). pp. 55-56. ISSN 2582-1873

UNSPECIFIED (2024) Mathaapu: Connect conject conclude. pp. 1-48.

UNSPECIFIED (2024) Multiplication: a better algorithm. At Right Angles. pp. 32-35. ISSN 2582-1873

UNSPECIFIED (2012) On running a math club. At Right Angles, 1 (1). pp. 58-59. ISSN 2582-1873

UNSPECIFIED (2023) Opening Bracket. At Right Angles. v-v. ISSN 2582-1873

UNSPECIFIED (2022) Polyominoes and nets of a cube. At Right Angles (12). pp. 35-38. ISSN 2582-1873

UNSPECIFIED (2024) Poster: Kite families. At Right Angles. ISSN 2582-1873

UNSPECIFIED (2016) Rascal triangle Synopsis. At Right Angles, 5 (3). pp. 21-22. ISSN 2582-1873

UNSPECIFIED (2022) Responses to: did calculus change the world? At Right Angles (12). pp. 129-136. ISSN 2582-1873

UNSPECIFIED (2024) Review of algebra tiles. At Right Angles. pp. 44-49. ISSN 2582-1873

UNSPECIFIED (2024) Right Angles_Cover_Inside_V2. At Right Angles (18). ISSN 2582-1873

UNSPECIFIED (2024) Right Angles_Cover_V3. At Right Angles. ISSN 2582-1873

UNSPECIFIED (2023) STATE EQUATE RELATE. Mathaapu (1). pp. 1-48.

UNSPECIFIED (2020) Solution to the Problem. At Right Angles. p. 41. ISSN 2582-1873

UNSPECIFIED (2024) Specific guidelines for authors. At Right Angles (20). p. 67. ISSN 2582-1873

UNSPECIFIED (2025) Specific guidelines for authors. At Right Angles (21). p. 53. ISSN 2582-1873

UNSPECIFIED (2020) Squaring the Circle - Editor's note. At Right Angles (7). p. 69. ISSN 2582-1873

UNSPECIFIED (2018) Tear out : fun with dot sheets. At Right Angles, 7 (2). pp. 63-66. ISSN 2582-1873

UNSPECIFIED (2019) A very brief introduction to fractals. At Right Angles (4). p. 1. ISSN 2582-1873

, Ashwin and , Shravan and , Shivkumar and Satya, Gowri (2022) Addendum to math from simple grids : exploring addition - RowColSum puzzle. At Right Angles (12). pp. 105-109. ISSN 2582-1873

, CoMac (2012) Ramanujan and pythagoras! At Right Angles, 1 (2). pp. 41-42.

, CoMac (2013) A plethora: One problem, six Solutions. At Right Angles, 2 (1). pp. 35-38.

, Crux Mathematicorum (2012) Problems, the life blood of mathematics. At Right Angles, 1 (1). pp. 65-66. ISSN 2582-1873

, Maran (2013) What is your corner : a game for learning place value. At Right Angles, 2 (2). pp. 75-77. ISSN 2582-1873

, Rakshitha (2021) An Olympiad challenge. At Right Angles (10). pp. 99-100. ISSN 2582-1873

, Rakshitha (2021) Two Problems in Number Theory - Part I. At Right Angles. pp. 93-95. ISSN 2582-1873

, मारन (2013) स्थानीय मान सीखने के लिए एक खेल : तुम्हारा कोना कौन-सा है ? At Right Angles. ISSN 2582-1873

Lingefjard, Thomas and Farahani, Djamshid (2017) Teaching concept of calculus. At Right Angles, 6 (3). pp. 76-80.

Vyawahare, Anantw (2017) Divisibility by 7. At Right Angles, 6 (3). pp. 73-75.

A, Ramachandran (2022) Investigative Questions for the Middle School. At Right Angles (13). pp. 32-33. ISSN 2582-1873

ASRANI, KOMAL (2023) Radius (त्रिज्या) and Sine (ज्या) – a study of the Names and their Relationship. At Right Angles. pp. 50-52. ISSN 2582-1873

Aavishkaar, (2021) Which is the best deal? At Right Angles (10). pp. 42-48. ISSN 2582-1873

Adiga, Shreyas S (2022) A Geometry Problem from IMO 2016. At Right Angles. pp. 79-82. ISSN 2582-1873

Adiga, Shreyas S (2021) A functional equation from APMO 2019. At Right Angles. pp. 82-83. ISSN 2582-1873

Ajaykumar, (2024) Explorations on symmetric polygons. At Right Angles (20). pp. 47-51. ISSN 2582-1873

Anand, Aradhana (2018) Creating trigonometric tables. At Right Angles, 7 (2). pp. 5-9. ISSN 2582-1873

Anupama, S.M. (2020) BODMAS: Much ado about nothing? At Right Angles (8). pp. 17-21. ISSN 2582-1873

Aswathi, Khushboo (2017) Drawing a spiral of square roots. At Right Angles, 6 (1). pp. 39-45. ISSN 2582-1873

Athle, Ajit (2012) How to . . .solve a geometry problem – I : a three step guide. At Right Angles, 1 (2). pp. 43-45. ISSN 2582-1873

Athle, Ajit (2013) How to…solve a geometry problem, part–2. At Right Angles, 2 (2). pp. 43-45. ISSN 2582-1873

Athle, Ajit. (2014) Solve a geometry problem — III. At Right Angles, 3 (3). pp. 75-77.

Athmaraman, R. (2012) Open-ended questions. At Right Angles, 1 (2). pp. 37-40.

Athmaraman, R. (2013) Problems for the Middle School. At Right Angles, 2 (3). pp. 1-3. ISSN 2582-1873

Athmaraman, R. (2014) Problems for the middle school. At Right Angles, 3 (1). pp. 68-70. ISSN 2582-1873

Athmaraman, R. (2012) Problems for the middle school. At Right Angles, 1 (2). pp. 67-69. ISSN 2582-1873

Athmaraman, R. (2015) Problems for the middle school. At Right Angles, 4 (3). pp. 88-91.

Athmaraman, R. (2014) Problems for the middle school. At Right Angles, 3 (3). pp. 78-79.

Athmaraman, R. (2013) Problems for the middle school. At Right Angles, 2 (1). pp. 53-55. ISSN 2582-1873

Athmaraman, R. (2013) Problems for the middle school. At Right Angles, 2 (2). pp. 67-68. ISSN 2582-1873

Athmaraman, R. and Titus, Sneha (2018) Problems for the middle school. At Right Angles, 7 (1). pp. 105-111. ISSN 2582-1873

Azim Premji Foundation, Math Co-dev Group (2022) Deciphering the mode formula. At Right Angles (12). pp. 39-44. ISSN 2582-1873

Azim Premji University, Math Space (2020) Low floor high ceiling tasks : Summing v. At Right Angles (6). pp. 26-29. ISSN 2582-1873

Azim Premji University, Math Space (2021) Review : counters. At Right Angles. pp. 97-100. ISSN 2582-1873

Azim Premji University, Math Space (2020) Review: arrow cards. At Right Angles. pp. 111-113. ISSN 2582-1873

Azim Premji University, Math Space (2022) Review: spinner. At Right Angles (12). pp. 102-104. ISSN 2582-1873

Azim Premji University, Math Space (2020) Triangles to Tetrahedrons and beyond…. At Right Angles (7). pp. 58-66. ISSN 2582-1873

B, Sury (2013) Set theory revisited as easy as pie the principle of inclusion and exclusion – part 1. At Right Angles, 2 (1). pp. 16-19. ISSN 2582-1873

B., Sury (2020) Tiresome paths, water gates and Euler’s formula. At Right Angles (6). pp. 6-9. ISSN 2582-1873

Badiger, Arvind N. (2012) Generating PPTs-letter received from the reader. At Right Angles, 1 (2). p. 1. ISSN 2582-1873

Bajaj, Sunil (2023) The Closing Bracket... At Right Angles. pp. 85-86. ISSN 2582-1873

Bajaj, Sunil and Kaur, Jasneet (2022) Harbans Puzzles. At Right Angles (14). pp. 24-30. ISSN 2582-1873

Banerjee, Rakhi (2020) Area of rectangle=length×breadth: conversations with a 9-year-old. At Right Angles (7). pp. 19-24. ISSN 2582-1873

Basu, Madhushree and Prasad, Amritanshu and Ravikumar, Vijay (2018) Triangular numbers. At Right Angles, 7 (1). pp. 5-12.

Bhaduri, Ananda (2019) Circles inscribed in segments. At Right Angles (4). pp. 22-26. ISSN 2582-1873

Bhatnagar, Gaurav (2014) How to discover 22/7 and other rational approximations to π. At Right Angles, 3 (1). pp. 49-53. ISSN 2582-1873

Bhatnagar, Gaurav (2017) How to discover the exponential function x e. At Right Angles, 6 (3). 09-13.

Bhatt, Meghraj (2019) Simple cryptography. At Right Angles (5). pp. 29-31. ISSN 2582-1873

Bhattacharjee, Bedanto and Sarkar, Riddhi (2022) A New Way of Looking at the Difference-of Two-Squares Identity. At Right Angles (13). pp. 58-59. ISSN 2582-1873

Bhattacharjee, Maitreyo (2022) Connecting φ and π. At Right Angles (12). pp. 125-128. ISSN 2582-1873

Bizony, Marcus (2016) The 3-4-5 triangle: some observations. At Right Angles, 5 (3). pp. 12-15.

Bizony, Marcus (2016) Three means. At Right Angles, 5 (2). pp. 50-53.

Bizony, Marcus (2017) The golden ratio unexpectedly. At Right Angles, 6 (1). pp. 29-31. ISSN 2582-1873

Bubna, Mahesh (2023) A procedure to (approximately) trisect an arbitrary angle. At Right Angles. pp. 51-52. ISSN 2582-1873

COMMUNITY MATHEMATICS CENTRE, CoMaC (2015) Generating the n-th Prime. At Right Angles, 4 (2). pp. 28-29.

Chakravarthy, Kshama (2025) Montessori approach: An introduction to selected materials and how to re-create them (part 2). At Right Angles (21). pp. 30-33. ISSN 2582-1873

Chakravarthy, Kshama (2024) Montessori approach: an introduction to selected materials and how to re-create them (part 1). At Right Angles (20). pp. 20-26. ISSN 2582-1873

Chakravarthy, Kshama and Kundu, Sonia (2025) A review of the new NCERT math textbooks for grades 1 and 2. At Right Angles (21). pp. 1-15. ISSN 2582-1873

Chand, Amit (2021) How the square root algorithm works. At Right Angles (9). pp. 29-35. ISSN 2582-1873

Chandan, Dev and Patil, Adhiraj (2017) Happy numbers. At Right Angles, 6 (3). pp. 37-39. ISSN 2582-1873

Chari, Nia (2022) The Housekeeper and The Professor. At Right Angles (14). pp. 74-76. ISSN 2582-1873

Chattopadhyay, Siddhartha Sankar (2023) Irrational Nine-Point Centre is Impossible for a Triangle with Rational Vertices. At Right Angles. pp. 59-60. ISSN 2582-1873

Chattopadhyay, Siddhartha Sankar (2022) On a Generalization of a Problem on Factorisation. At Right Angles (13). pp. 51-53. ISSN 2582-1873

Chattopadhyay, Siddhartha Sankar (2021) On the tens digit of a prime power. At Right Angles (9). pp. 76-78. ISSN 2582-1873

Chaurasia, Gaurav (2021) An Approach to Cubic Equations. At Right Angles (9). pp. 91-92. ISSN 2582-1873

Chaurasia, Gaurav (2020) Squaring the Circle. At Right Angles (7). pp. 67-68. ISSN 2582-1873

Chhabra, Nishtha (2021) Kasuti : the mathematics of embroidery. At Right Angles. pp. 7-12. ISSN 2582-1873

Comac, Comac (2017) There are infinitely prime numbers. At Right Angles, 6 (3). pp. 26-27.

Comac, Comac (2017) What to do when one gets two different answers to a counting problems. At Right Angles, 6 (3). pp. 64-66.

Comac, Comac (2017) A triangle problem. At Right Angles, 6 (3). pp. 96-98.

Community Mathematics Centre, CoMaC (2013) An impossible construction. At Right Angles, 2 (1). p. 65.

Community Mathematics Centre, (CoMaC) (2016) The rascal triangle. At Right Angles, 5 (1). pp. 44-48. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) 20 - 30- 130, a trigonometric solution. At Right Angles, 5 (1). pp. 68-70. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2017) 3 4 5... strikes again! At Right Angles, 6 (1). pp. 48-49.

Community Mathematics Centre, CoMaC (2016) A 80-80-20 triangle. At Right Angles, 5 (2). pp. 63-65. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) Addendum to integer-sided Triangles with perpendicular medians. At Right Angles, 5 (1). p. 31. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) Addendum to “A 20-30-130 triangle”. At Right Angles, 5 (2). pp. 66-67. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2014) Adventures in problem solving - Squares between Squares. At Right Angles, 3 (1). pp. 64-67. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2018) Area covered by two intersecting circles. At Right Angles, 7 (3). pp. 59-62. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2019) Can there be SSA congruence? At Right Angles (4). pp. 66-69. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2018) Characterisation of a right triangle. At Right Angles, 7 (2). pp. 91-94. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2020) Chika’s test for divisibility by 7. At Right Angles (6). pp. 16-18. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2012) Complete family of pythagorean triples. At Right Angles, 1 (2). pp. 27-30.

Community Mathematics Centre, CoMaC (2021) Computation of a surd. At Right Angles (10). pp. 84-85. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2019) Computing an angle in an equilateral triangle. At Right Angles (4). pp. 102-103. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2017) Connecting the dots... the art and science of interpolation and extrapolation. At Right Angles, 6 (2). pp. 12-16. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) Digital roots of perfect numbers. At Right Angles, 5 (2). pp. 45-49. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2014) Enumeration of semi-regular tessellations. At Right Angles, 3 (1). pp. 12-14.

Community Mathematics Centre, CoMaC (2019) Finding the square root of a four-digit perfect square. At Right Angles. pp. 66-68. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2013) Fun problems. At Right Angles, 2 (1). pp. 49-52.

Community Mathematics Centre, CoMaC (2013) Fun problems. At Right Angles, 2 (2). pp. 62-66. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2012) How many primitive Pythagorean triples in arithmetic progression. At Right Angles, 1 (1). pp. 33-34.

Community Mathematics Centre, CoMaC (2013) In his own words: George Polya. At Right Angles, 2 (1). pp. 30-34.

Community Mathematics Centre, CoMaC (2018) Is a parallelogram ever not a parallelogram? At Right Angles, 7 (1). pp. 72-74. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2012) Many ways to QED : the pythagorean theorem. At Right Angles, 1 (1). pp. 20-24.

Community Mathematics Centre, CoMaC (2016) Octagon in a square: another solution. At Right Angles, 5 (3). pp. 67-69. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) Octagon in a square. At Right Angles, 5 (1). pp. 71-73. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) On proofs without words …a thousand words? At Right Angles, 4 (1). pp. 7-10. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2012) One formula - two derivations. At Right Angles, 1 (1). pp. 35-38.

Community Mathematics Centre, CoMaC (2020) Partial sum of consecutive integers equal to a square. At Right Angles (7). pp. 1-4. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2018) Problem about a finite sequence. At Right Angles, 7 (2). pp. 137-139. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2017) Problem concerning rational numbers. At Right Angles, 6 (2). pp. 98-102.

Community Mathematics Centre, CoMaC (2012) Ramanujan numbers. At Right Angles, 1 (2). pp. 61-62.

Community Mathematics Centre, CoMaC (2015) Some problems from the Olympiads. At Right Angles, 4 (1). pp. 56-58. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2017) Theorem concerning a right triangle. At Right Angles, 6 (2). pp. 95-97. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) Triangle in a rectangle. At Right Angles, 4 (1). pp. 64-65. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2014) Two combinatorial problems. At Right Angles, 3 (3). pp. 70-72.

Community Mathematics Centre, CoMaC (2017) Two problem studies. At Right Angles, 6 (1). pp. 76-79.

Community Mathematics Centre, CoMaC (2016) Two problem studies. At Right Angles, 5 (3). pp. 82-84. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) Two problems. At Right Angles, 4 (3). pp. 83-87. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) Two problems. At Right Angles, 5 (1). pp. 88-90. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2017) What’s the next number? At Right Angles, 6 (2). pp. 54-56.

Community Mathematics Centre, CoMaC (2018) An angle-in-a- quadrilateral problem. At Right Angles, 7 (2). pp. 101-104. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2013) An application of graphs centigrade–fahrenheit conversion. At Right Angles, 2 (1). pp. 41-43.

Community Mathematics Centre, CoMaC (2015) A baby one quarter the size of its parents. At Right Angles, 4 (2). pp. 40-43. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) The cost of money. At Right Angles, 4 (3). pp. 56-58. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) The difference-of-two-squares formula : a new look. At Right Angles, 5 (2). pp. 54-57. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2020) An ‘extreme algebra’ question. At Right Angles. pp. 99-101. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) A flower with four petals. At Right Angles, 4 (2). pp. 26-27. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) An impossible relation. At Right Angles, 4 (3). p. 42. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) A magic square in Ramanujan’s honour. At Right Angles, 4 (3). pp. 48-49. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2018) A minimum perimeter problem. At Right Angles, 7 (1). pp. 120-122.

Community Mathematics Centre, CoMaC (2016) A new test for divisibility by 8. At Right Angles, 5 (3). pp. 46-48. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2015) A potpourri of problems. At Right Angles, 4 (2). pp. 55-58. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2016) A problem study. At Right Angles, 5 (2). pp. 85-90. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2018) A pythagoras-style diophantine equation and its Solution. At Right Angles, 7 (3). pp. 101-012. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2017) A simpler way to bisect an angle. At Right Angles, 6 (1). p. 47. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2012) A surprising fact about triangles with a 60 degree angle : is the converse of a statement always true? At Right Angles, 1 (2). pp. 52-54. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2013) A tale of two formulas. At Right Angles, 2 (3). pp. 57-60. ISSN 2582-1873

Community Mathematics Centre, CoMaC (2018) The three circles problem. At Right Angles, 7 (2). pp. 134-136. ISSN 2582-1873

Community Mathematics Centre, (CoMaC) (2014) A nines multiples problem. At Right Angles, 3 (3). pp. 73-74.

Costa, Agnes D (2012) Exploring constructivism. At Right Angles, 1 (2). pp. 1-2. ISSN 2582-1873

D E, PRITHWIJIT and SHIRALI, SHAILESH (2016) Problems for the Senior School. At Right Angles, 5 (2). pp. 77-80.

D.B., Damini and Dhar, Abhishek (2022) How Archimedes showed that pi is approximately 22 by 7. At Right Angles (12). pp. 13-19. ISSN 2582-1873

DE VILLIERS, M (2013) A Trapezium theorem generalized. At Right Angles, 2 (3). pp. 53-56. ISSN 2582-1873

DESAI, RANJIT (2016) Adventures with triples. At Right Angles, 5 (2). pp. 91-93.

DESAI, RANJIT (2020) The Generalised Pythagoras Theorem – Another Proof. At Right Angles (7). pp. 42-43. ISSN 2582-1873

Dani, S. G. and Limaye, M. (2021) On some geometric constructions in the sulvasutras from a pedagogical perspective – I. At Right Angles (9). pp. 7-16. ISSN 2582-1873

Dani, S. G. and Limaye, Medha (2021) On some geometric constructions in the sulvasutras from a pedagogical perspective – II. At Right Angles (10). pp. 7-16. ISSN 2582-1873

Das, Shuborno (2018) Functional equations. At Right Angles, 7 (2). pp. 10-18. ISSN 2582-1873

Das, Shuborno (2018) Functional equations, part-II. At Right Angles, 7 (3). pp. 5-10. ISSN 2582-1873

Das, Shuborno (2018) Solutions to practice problems in functional equations – part I. At Right Angles, 7 (3). pp. 11-14. ISSN 2582-1873

Dash, Arddhendu Shekhar (2020) The Approach to Teaching Fractions: Misconceptions and more. At Right Angles. pp. 26-31. ISSN 2582-1873

Dash, Arddhendu Shekhar (2020) Justification of 90° angle construction procedure. At Right Angles (6). pp. 35-39. ISSN 2582-1873

Dash, Arddhendu Shekhar (2024) Thoughts on the Teaching Approach to the Division Algorithm. At Right Angles (18). pp. 28-34. ISSN 2582-1873

Dash, Arddhendu Shekhar (2021) Verbal communication in a mathematics classroom. At Right Angles. pp. 18-20. ISSN 2582-1873

De, Prithiwijit and Shirali, Shailesh (2017) Problems for senior school. At Right Angles, 6 (3). pp. 104-107.

De, Prithiwijit and Sircar, Swati and Titus, Sneha (2017) APC-AREA, perimeter and congruency. At Right Angles, 6 (3). pp. 55-58.

De, Prithwijit (2021) Adventure with quadratic equations. At Right Angles. pp. 104-108. ISSN 2582-1873

De, Prithwijit (2022) Classrooms: Roots in Coefficients. At Right Angles. pp. 83-85. ISSN 2582-1873

De, Prithwijit (2022) Dwelling on the Incircle. At Right Angles. pp. 55-58. ISSN 2582-1873

De, Prithwijit (2021) On Some Questions Related to a Triangle. At Right Angles (9). pp. 86-88. ISSN 2582-1873

De, Prithwijit (2018) On an optimization problem. At Right Angles, 7 (1). pp. 80-82.

De, Prithwijit (2017) On problem posing. At Right Angles, 6 (2). pp. 82-85. ISSN 2582-1873

De, Prithwijit (2018) Pigeonhole principle: some applications. At Right Angles, 7 (3). pp. 74-78. ISSN 2582-1873

De, Prithwijit (2020) Playing with Quadrilaterals. At Right Angles (8). pp. 77-80. ISSN 2582-1873

De, Prithwijit (2023) To factor or not to factor. At Right Angles. pp. 30-31. ISSN 2582-1873

De, Prithwijit (2021) Tom and jerry play with fractions. At Right Angles (10). pp. 57-59. ISSN 2582-1873

De, Prithwijit (2022) An arithmetic escapade. At Right Angles (12). pp. 45-47. ISSN 2582-1873

De, Prithwijit (2016) An eye on eyeball. At Right Angles, 5 (2). pp. 34-37.

De, Prithwijit (2019) A geometric exploration. At Right Angles (4). pp. 90-92. ISSN 2582-1873

De, Prithwijit (2018) The odd-even tale. At Right Angles, 7 (2). pp. 126-129. ISSN 2582-1873

De, Prithwijit (2012) A sweet seller’s trick. At Right Angles, 1 (1). pp. 17-19.

De, Prithwijit (2017) A triangle problem and three variants. At Right Angles, 6 (3). pp. 31-36.

De, Prithwijit and Shirali, Shailesh (2014) Problem for the senior school. At Right Angles, 3 (2). pp. 74-76. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2016) Problems for the senior school. At Right Angles, 5 (1). pp. 82-84. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2016) Problems for the senior school. At Right Angles, 5 (3). pp. 72-76. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2018) Problems for the senior school. At Right Angles, 7 (2). pp. 123-125. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2013) Problems for the senior school. At Right Angles, 2 (2). pp. 69-70. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2014) Problems for the senior school. At Right Angles, 3 (1). pp. 71-72. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2020) Problems for the Senior School. At Right Angles (8). pp. 66-69. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2019) Problems for the Senior school. At Right Angles (4). pp. 87-89. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2017) Problems for the senior school. At Right Angles, 6 (1). pp. 73-75. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2017) Problems for the senior school. At Right Angles, 6 (2). pp. 92-94.

De, Prithwijit and Shirali, Shailesh (2012) Problems for the senior school. At Right Angles, 1 (2). pp. 70-73.

De, Prithwijit and Shirali, Shailesh (2013) Problems for the senior school. At Right Angles, 2 (3). pp. 64-65. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2013) Problems for the senior school. At Right Angles, 2 (1). pp. 56-59.

De, Prithwijit and Shirali, Shailesh (2018) Problems for the senior school. At Right Angles, 7 (3). pp. 103-105. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2019) Problems for the senior school. At Right Angles (5). pp. 77-80. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2020) Problems for the senior school. At Right Angles (6). pp. 69-71. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2019) Problems for the senior school. At Right Angles. pp. 97-99. ISSN 2582-1873

De, Prithwijit and Shirali, Shailesh (2018) Problems for the senior schools. At Right Angles, 7 (1). pp. 117-119.

De, Prithwijit and Shirali, Shailesh (2020) Problems for the senior schools. At Right Angles. pp. 96-98. ISSN 2582-1873

De, Prithwijit and Titus, Sneha and Sircar, Swati (2014) Fair Division. At Right Angles, 3 (1). pp. 31-34.

De, Prithwijit and Shirali, Shailesh (2014) Problems for the senior school. At Right Angles, 3 (3). pp. 80-81.

De, Sourav (2023) A Puzzling High School Math Problem. At Right Angles. pp. 72-75. ISSN 2582-1873

De Villiers, Michael (2015) Flashback to the past a 1949 matric geometry question. At Right Angles, 4 (3). pp. 24-29. ISSN 2582-1873

De Villiers, Michael (2017) from a golden rectangle to golden quadrilaterals and beyond, part 2. At Right Angles, 6 (2). pp. 74-81. ISSN 2582-1873

Deens Academy Math Club, (2020) The N-Queens Problem. At Right Angles (8). pp. 40-46. ISSN 2582-1873

Delhi World Public School, Department of Mathematics (2022) The Power of stories in math class. At Right Angles (12). pp. 20-28. ISSN 2582-1873

Desai, Ranjit (2016) Adventures with triples, part II. At Right Angles, 5 (3). pp. 85-90. ISSN 2582-1873

Desai, Ranjit (2021) Complete journey of a minute hand. At Right Angles (9). p. 36. ISSN 2582-1873

Dewan, Hridaykant (2024) Contextual Problems in Math: The NCF-SE Approach. At Right Angles. ISSN 2582-1873

Dewan, Hridaykant (2018) Interpretation of errors in arithmetic. At Right Angles, 7 (3). pp. 48-52. ISSN 2582-1873

Dhaliwal, A.S. and Ghosh, A. and Mansukhani, N. (2020) A Cellular Automata Model for Predicting Crowd Movement during Evacuation. At Right Angles (8). pp. 53-62. ISSN 2582-1873

Dhasmana, Preeti (2021) Finding out area by using symmetry. At Right Angles. pp. 44-53. ISSN 2582-1873

Divakaran, D (2023) Adventures of a Mathematician By Stanislaw Ulam. At Right Angles. pp. 86-89. ISSN 2582-1873

Diwakar, Sandeep (2024) Problem Solving – Your Own Way! At Right Angles (18). pp. 55-56. ISSN 2582-1873

Diwakar, Sandeep (2024) What is New in the New Mathematics Textbooks? At Right Angles. ISSN 2582-1873

Fitzherbert, Anushka Rao (2018) The conjecturing classroom. At Right Angles, 7 (1). pp. 38-43.

Fraivert, David and Stupel, Moshe (2018) Formulas for special segments in a triangle. At Right Angles, 7 (2). pp. 72-85.

G. R., Veena (2019) The gap between ‘HOW’ and ‘WHY’ in mathematics…. At Right Angles (4). p. 54. ISSN 2582-1873

GUPTA, SHYAM SUNDER (2023) Amazing Shapes using Factorial Digits. At Right Angles. pp. 25-30. ISSN 2582-1873

Gandhi, Haneet (2014) Covering the Plane with repeated patterns. At Right Angles, 3 (1). pp. 5-11.

Gandhi, Haneet (2014) Covering the plane with repeated patterns- part II. At Right Angles, 3 (2). pp. 5-9. ISSN 2582-1873

Gandhi, Haneet (2017) Method in mathness : cataloguing 1-uniform tilings. At Right Angles, 6 (1). pp. 15-20. ISSN 2582-1873

Gandhi, Haneet and Verma, Neha (2020) Mathematical Doodling using the what-if-not approach. At Right Angles. pp. 32-38. ISSN 2582-1873

Garge, Anuradha S. (2012) Tracing the history of a theorem Lagrange’s four squares theorem. At Right Angles, 1 (2). pp. 5-9.

Gaur, Shiv (2012) Axioms of paper folding. At Right Angles, 1 (2). pp. 16-22. ISSN 2582-1873

Gaur, Shiv (2012) How do you divide a strip into equal fifths? At Right Angles, 1 (1). pp. 25-28.

Gaur, Shiv (2013) An ‘Origamics’ activity : X-lines. At Right Angles, 2 (3). pp. 46-48. ISSN 2582-1873

Gaur, Shiv (2013) Paper play making a skeletal dodecahedron a solid geometry experience. At Right Angles, 2 (1). pp. 5-10. ISSN 2582-1873

Gesota, Rupesh (2023) Detours – Unplanned Learning Opportunities. At Right Angles. pp. 19-24. ISSN 2582-1873

Gesota, Rupesh (2018) Making sense of adding unlike fractions. At Right Angles, 7 (2). pp. 59-61. ISSN 2582-1873

Ghormade, Gauri (2024) Generalising a square root problem. At Right Angles. pp. 63-65. ISSN 2582-1873

Ghosh, Abhroneel and Warhadpande, Mahit (2021) Lessons from proofs both false and true. At Right Angles (10). pp. 29-34. ISSN 2582-1873

Ghosh, Jonaki (2020) Dynamic geometry software: A conjecture making tool. At Right Angles. pp. 86-92. ISSN 2582-1873

Ghosh, Jonaki (2014) Exploring Fibonacci numbers using a spreadsheet. At Right Angles, 3 (1). pp. 58-63. ISSN 2582-1873

Ghosh, Jonaki (2023) Exploring Geometrical Constructions – The GeoGebra Way. At Right Angles. pp. 68-75. ISSN 2582-1873

Ghosh, Jonaki (2016) Fractal constructions leading to algebraic thinking. At Right Angles, 5 (3). pp. 59-66. ISSN 2582-1873

Ghosh, Jonaki (2015) Hill ciphers. At Right Angles, 4 (3). pp. 62-71. ISSN 2582-1873

Ghosh, Jonaki (2012) The birthday paradox. At Right Angles, 1 (1). pp. 39-42.

Ghosh, Jonaki (2019) Exploring fractals : the geogebra way. At Right Angles (4). pp. 77-83. ISSN 2582-1873

Ghosh, Jonaki B. (2021) Exploring the Nine-point Circle: Conjecture making and proof using Dynamic Geometry Software. At Right Angles. pp. 59-65. ISSN 2582-1873

Ghosh, Jonaki B. (2019) The game of craps. At Right Angles (5). pp. 66-73. ISSN 2582-1873

Ghosh, Jonaki B. (2012) The monty hall problem. At Right Angles, 1 (2). pp. 55-60.

Ghosh, Jonaki B. and Adsule, Rohit (2018) One dimensional cellular automata-The totalistic approach. At Right Angles, 7 (2). pp. 105-116. ISSN 2582-1873

Ghosh, Jonaki B. and Adsule, Rohit (2018) The elementary cellular automata a journey into the computational world. At Right Angles, 7 (1). pp. 95-104.

Ghosh, Sourangshu (2021) Inequalities - Part 1. At Right Angles (10). pp. 93-96. ISSN 2582-1873

Ghosh, Sourangshu (2021) Inequalities - part 2. At Right Angles. pp. 109-112. ISSN 2582-1873

Ghoshal, Manoranjan (2021) Angle trisection – an approximate procedure. At Right Angles. pp. 71-72. ISSN 2582-1873

Gomathy, R. (2019) Playing with tiles beginning to tessellate. At Right Angles. pp. 38-43. ISSN 2582-1873

Goswami, Richa (2018) Misconceptions in fraction. At Right Angles, 7 (1). pp. 48-51. ISSN 2582-1873

Gowers, William Timothy (2019) How Craig Barton wishes he’d taught maths. At Right Angles (5). pp. 83-88. ISSN 2582-1873

Gulati, Sangeeta (2017) Create your own interactive activity. At Right Angles, 6 (3). pp. 81-88.

Gulati, Sangeeta (2018) Mobile puzzles – making sense of variables and equations. At Right Angles, 7 (3). pp. 63-68. ISSN 2582-1873

Gulati, Sangeeta (2016) Play and learn with Desmos. At Right Angles, 5 (1). pp. 75-80. ISSN 2582-1873

Gupta, Charu (2023) A (S)Trip with a twist. At Right Angles. pp. 7-11. ISSN 2582-1873

Gupta, Jayaditya (2023) Counting Perimeter Magic Triangles. At Right Angles. pp. 63-67. ISSN 2582-1873

Gupta, Sandhya (2018) Shapes with sutli : the string game. At Right Angles, 7 (3). pp. 26-33. ISSN 2582-1873

HARAGOPAL, R (2023) Haras Numbers. At Right Angles. pp. 56-58. ISSN 2582-1873

HOSSAIN, SARMAD (2023) Geometric and Calculus Proofs of Some Inequalities. At Right Angles. pp. 99-102. ISSN 2582-1873

Hazra, Krittika (2021) Little mathematicians. At Right Angles (10). ISSN 2582-1873

Humenberger, Hans (2021) The Bevan point and associated points and circles. At Right Angles (10). pp. 64-69. ISSN 2582-1873

Humenberger, Hans (2023) Centroids of Quadrilaterals and a Peculiarity of Parallelograms. At Right Angles. pp. 90-98. ISSN 2582-1873

Hussen, Ali Ibrahim (2015) Approximating square roots and cube roots. At Right Angles, 4 (1). pp. 11-15. ISSN 2582-1873

Islam, Mujahidul (2021) Playing with turtle blocks. At Right Angles. pp. 87-96. ISSN 2582-1873

Jagadeeshan, Shashidhar (2019) From regular pentagons to the icosahedron and dodecahedron via the golden ratio – ii. At Right Angles (5). pp. 17-26. ISSN 2582-1873

Jagadeeshan, Shashidhar (2019) From regular pentagons to the icosahedron via the golden ratio - part I. At Right Angles (4). pp. 5-9. ISSN 2582-1873

Jagadeeshan, Shashidhar (2018) Introducing Steven Strogatz. At Right Angles, 7 (3). pp. 109-110. ISSN 2582-1873

Jagadeeshan, Shashidhar (2020) Introducing numberphile. At Right Angles. pp. 114-115. ISSN 2582-1873

Jagadeeshan, Shashidhar (2015) Review of "math! encounters with high school students" by serge lang. At Right Angles, 4 (3). pp. 99-103.

Jagadeeshan, Shashidhar (2013) Towards mathematical disposition notes from a small school supportive learning spaces. At Right Angles, 2 (1). pp. 24-29.

Jagadeeshan, Shashidhar (2022) The language God talks? a review. At Right Angles (12). pp. 97-101. ISSN 2582-1873

Jagadeeshan, Shashidhar (2016) The magical world of infinities. At Right Angles, 5 (1). pp. 15-20. ISSN 2582-1873

Jagadeeshan, Shashidhar (2016) The magical world of infinities. At Right Angles, 5 (2). pp. 17-23.

Jagadeeshan, Shashidhar (2017) A review of the cartoon guide to algebra and the cartoon guide to calculus. At Right Angles, 6 (2). pp. 106-112. ISSN 2582-1873

Jagadeeshan, Shashidhar (2012) The theorem of Pythagoras. At Right Angles, 1 (1). pp. 5-13.

Jagadeeshan, Shashidhar (2017) The story of maths : a brief review. At Right Angles, 6 (3). pp. 117-118.

Jagathapu, Kasi Rao (2023) Another theorem for congruence of triangles. At Right Angles. 35 -39. ISSN 2582-1873

Jagathapu, Kasi Rao (2018) Bisecting an angle using a ruler. At Right Angles, 7 (2). pp. 30-32. ISSN 2582-1873

James, Metz (2022) A Cousin of the Rascal Triangle. At Right Angles (14). pp. 38-39. ISSN 2582-1873

Jayaraj, Nandita (2024) Nifty, thrifty, and crafty: math space turns 10. At Right Angles (20). pp. 1-3. ISSN 2582-1873

Jha, Shreyan (2019) Explorations on triangles with integer sides. At Right Angles (5). pp. 41-42. ISSN 2582-1873

Joardar, Bodhideep (2019) Pythagorean triples and composition. At Right Angles. pp. 82-91. ISSN 2582-1873

Joardar, Bodhideep (2018) Solution of Ramanujan’s door number problem by using vargaprakriti. At Right Angles, 7 (1). pp. 56-57.

Joardar, Bodhideep (2017) A property of primitive Pythagorean triples. At Right Angles, 6 (2). pp. 67-68. ISSN 2582-1873

Joardar, Bodhideep (2017) An Approximation of π by using the law of cosines. At Right Angles, 6 (3). pp. 43-45.

Jonaki, Ghosh (2022) The Spaghetti Problem. At Right Angles (13). pp. 64-71. ISSN 2582-1873

Joseph, Aruni (2024) Abstract to life: a geometry experience. At Right Angles. pp. 21-27. ISSN 2582 - 1873

Joshi, Kapil D (2018) Visual proof of the two-variable am-gm inequality. At Right Angles, 7 (1). pp. 54-55.

Joshi, Kapil D (2016) Triangle equalizers - a probabilistic approach, part 1. At Right Angles, 5 (1). pp. 21-25. ISSN 2582-1873

Joshi, Kapil D (2018) The power triangle. At Right Angles, 7 (1). pp. 33-37.

K, Subramaniam (2016) Jill Adler – a South African mathematics education researcher. At Right Angles, 5 (2). pp. 5-10.

K., Baburajan (2021) Areas of triangles between two parallel lines with same base are equal : proof(?) by paper folding. At Right Angles. pp. 21-30. ISSN 2582-1873

K., Sasikumar (2023) Achu’s primes - a special class of weak primes. At Right Angles. pp. 40-42. ISSN 2582-1873

K., Sasikumar (2021) A Problem in Elementary Number Theory. At Right Angles. pp. 66-67. ISSN 2582-1873

K., Sasikumar (2021) Solution to a functional equation. At Right Angles (10). pp. 97-98. ISSN 2582-1873

K., Sasikumar (2022) A Special Class of Strong Prime Numbers – Krishnan’s Primes. At Right Angles (13). pp. 49-50. ISSN 2582-1873

K., Sasikumar (2021) Trigonometric proof of Ptolemy’s theorem. At Right Angles. pp. 113-114. ISSN 2582-1873

K., Sasikumar (2022) Two Properties of Natural Numbers all of whose Digits are 1. At Right Angles (14). pp. 43-44. ISSN 2582-1873

Kalbhavi, Praneetha (2022) Solution to a 2018 Romanian mathematics olympiad problem. At Right Angles (12). pp. 80-81. ISSN 2582-1873

Kalbhavi, Praneetha (2021) Solution to a problem from the CMI entrance test 2020. At Right Angles. pp. 79-81. ISSN 2582-1873

Kalbhavi, Praneetha (2021) Solutions to Two Problems. At Right Angles (9). pp. 84-85. ISSN 2582-1873

Kancharla, Adish (2023) A problem from the 2019 zonal informatics olympiad. At Right Angles. pp. 63-65. ISSN 2582-1873

Kanhere, Aaloka (2023) Manipulative Review: Rangometry. At Right Angles. pp. 78-82. ISSN 2582-1873

Kanojiya, Rajkumar (2022) Constructions of Angles without Using a Protractor. At Right Angles (14). p. 40. ISSN 2582-1873

Kanojiya, Rajkumar (2025) Round and round: Mathematics through number wheels. At Right Angles (21). pp. 34-37. ISSN 2582-1873

Kanojiya, Rajkumar (2023) Some more Divisibility Rules. At Right Angles. pp. 39-41. ISSN 2582-1873

Karmarkar, Bharat (2014) Explorations in teaching. At Right Angles, 3 (1). pp. 38-39.

Karmarkar, Bharat (2016) An exploration with surds. At Right Angles, 5 (1). pp. 59-61. ISSN 2582-1873

Katkar, Laxman N. (2019) Extensions of the theorem of Pythagoras. At Right Angles (5). pp. 11-16. ISSN 2582-1873

Kaur, Rima (2024) Who Teaches Math Vocabulary? At Right Angles. ISSN 2582-1873

Kaushik, Satvik U. (2018) A note on Armstrong numbers. At Right Angles, 7 (3). pp. 37-42. ISSN 2582-1873

Kissane, Barry (2016) Introducing Differential Calculus on a Graphics Calculator. At Right Angles, 5 (2). pp. 68-76.

Kissane, Barry (2019) Taking a chance with a graphics calculator. At Right Angles. pp. 72-81. ISSN 2582-1873

Kissane, Barry (2022) The educational use of tables on advanced scientific calculators. At Right Angles (12). pp. 85-96. ISSN 2582-1873

Kleiner, Mark (2015) Edward Frenkel’s “Love & Math: the Heart of Hidden Reality” - a review. At Right Angles, 4 (1). pp. 66-69.

Kodur, Giri (2013) Slicing a cube - sum of cubes and square of a sum : understanding your identity. At Right Angles, 2 (1). pp. 11-15. ISSN 2582-1873

Kohli, U. (2020) The Mystical Number 2997 (Kohli’s Number). At Right Angles (8). pp. 35-36. ISSN 2582-1873

Komenaka, Ian and Metz, James (2023) A conversation with Ian classroom about squares and cubes. At Right Angles. pp. 12-14. ISSN 2582-1873

Korpal, Gaurish (2015) Say crease! folding paper in half miles please. At Right Angles, 4 (3). pp. 20-23.

Kothiyal, Narender and Math, Space (2024) Fractions in bottles!: a conversation on teaching fractions…. At Right Angles (20). pp. 33-41. ISSN 2582-1873

Krishnamoorthy, Usha (2019) Data, perception and ignorance. At Right Angles (4). pp. 104-112. ISSN 2582-1873

Krishnaswamy, Rema and Biswas, Jishnu (2018) Beautiful, simple, exact, crazy. At Right Angles, 7 (1). pp. 124-127.

Kulkarni, Dheeraj (2013) Review of ‘Dimensions’. At Right Angles, 2 (2). pp. 71-74. ISSN 2582-1873

Kumar, Prabhat (2016) Rich Maths for Everyone: A Review of Jo Boaler’s Mathematical Mindsets. At Right Angles, 5 (2). pp. 94-98.

Kumaran, A (2022) Teaching Mathematics and Learning About Life…. At Right Angles (14). pp. 7-14. ISSN 2582-1873

Kurien, Anand Mathew (2023) Ramanujan: From Zero to Infinity. At Right Angles. pp. 88-91. ISSN 2582-1873

Lakshman, Vishnu (2023) Beware of the Devil in your Dreams! At Right Angles. pp. 86-87. ISSN 2582-1873

Lakshmi, R. Rohini (2016) An iteration on the prime factors of a number. At Right Angles, 5 (3). pp. 28-29. ISSN 2582-1873

Lingefjärd, Thomas (2013) Connections between geometry and number theory. At Right Angles, 2 (2). pp. 50-58. ISSN 2582-1873

Lingefjärd, Thomas (2015) Learning mathematics through geometrical inquiry. At Right Angles, 4 (1). pp. 50-55. ISSN 2582-1873

M, Prachi (2024) Mathematical discourse: going beyond right answers. At Right Angles. pp. 15-20. ISSN 2582-1873

M, Sundarraman (2022) Counting some more triangles. At Right Angles (12). pp. 82-84. ISSN 2582-1873

M., Srinivasan (2020) Introducing robocompass : a nifty tool for geometrical construction. At Right Angles (6). pp. 63-66. ISSN 2582-1873

MITTAL, VANSHIKA (2023) Nesting Platonic Solids. At Right Angles. pp. 36-46. ISSN 2582-1873

Madhusudanan, Sundarraman (2016) Counting triangles. At Right Angles, 5 (3). pp. 24-27. ISSN 2582-1873

Magon, Ishaan and Reddy, Maya and Suresh, Rishabh and Jagadeeshan, Shashidhar (2016) The rascal triangle : a rascal full of surprises! At Right Angles, 5 (3). pp. 16-20. ISSN 2582-1873

Maithil, Pramod (2022) The ‘Ganak’ Exploration: Helping Children to Learn About Numbers. At Right Angles (14). pp. 15-20. ISSN 2582-1873

Makhija, Aman (2023) Deriving an equation for the Sun’s path. At Right Angles. pp. 69-73. ISSN 2582-1873

Makobe, Moses (2022) Finding the base angles of a triangle. At Right Angles (12). pp. 67-69. ISSN 2582-1873

Mallik, A. K. (2020) A Note on Geometric Construction. At Right Angles (7). pp. 44-47. ISSN 2582-1873

Maneesha, Ampagouni Divya (2016) Integer-sided Triangles with perpendicular medians. At Right Angles, 5 (1). pp. 27-30. ISSN 2582-1873

Manjunath, Amrutha (2015) The methods of Archimedes. At Right Angles, 4 (3). pp. 7-15.

Math, Space (2024) 2D Base-10 Blocks : (also known as Flats-Longs-Units). At Right Angles (18). pp. 65-69. ISSN 2582-1873

Math, Space (2024) Dienes blocks and static beads: a comparative analysis. At Right Angles (20). pp. 55-59. ISSN 2582-1873

Math, Space (2024) Division with Multi-Digit-Divisors. At Right Angles (18). pp. 35-40. ISSN 2582-1873

Math, Space (2024) A walk through math space. At Right Angles (20). pp. 4-9. ISSN 2582-1873

Math Space, (2022) Integers: Extending the Number line with Coloured Counters. At Right Angles (13). pp. 34-40. ISSN 2582-1873

Math Space, (2022) Manipulative Review: Geoboard. At Right Angles (13). pp. 75-78. ISSN 2582-1873

Math Space, (2022) Manipulative Review: Ten-frames. At Right Angles (14). pp. 77-80. ISSN 2582-1873

Math Space, (2022) Playing with Symmetry. At Right Angles (14). pp. 31-34. ISSN 2582-1873

Mathematics Co-Development Group, APF (2021) Deciphering the Median Formula Part 1: From the Histogram. At Right Angles (9). pp. 37-42. ISSN 2582-1873

Mathematics Co-Development Group, APF (2021) Deciphering the median formula - part 2 : from the Ogives. At Right Angles. pp. 56-63. ISSN 2582-1873

Mathematics Co-Development Group, APF (2022) A ‘Mean’ Question. At Right Angles (13). pp. 43-48. ISSN 2582-1873

Maurya, Akash (2023) Connections between Paper Folding, Geometry and Proof. At Right Angles. pp. 16-18. ISSN 2582-1873

Meera, . (2023) Computing Squares of Consecutive Numbers in a Number Series. At Right Angles. pp. 12-15. ISSN 2582-1873

Meher, Narayana (2024) Word problems on addition and subtraction. At Right Angles (20). pp. 27-32. ISSN 2582-1873

Meher, Narayana and Sircar, Swati (2024) Division with Decimals. At Right Angles (18). pp. 41-49. ISSN 2582-1873

Mehra, Jagrati (2025) Exploring patterns: learning with numbers in grade 2. At Right Angles (21). pp. 26-29. ISSN 2582-1873

Memon, Asma and Panchbhai, Jivesh (2024) Unveiling the magic of patterns. At Right Angles (20). pp. 10-13. ISSN 2582-1873

Metz, J. (2020) Age Digit Reversals. At Right Angles (8). pp. 15-16. ISSN 2582-1873

Metz, James (2019) On adding magic triangles. At Right Angles. pp. 57-58. ISSN 2582-1873

Metz, James (2021) The Tachymeter and the Hyperbola. At Right Angles. pp. 54-55. ISSN 2582-1873

Metz, James (2021) Winning Ways. At Right Angles. pp. 49-50. ISSN 2582-1873

Metz, James (2020) Working together. At Right Angles (7). pp. 1-5. ISSN 2582-1873

Metz, James (2022) The rascal triangle revisited. At Right Angles (12). pp. 60-61. ISSN 2582-1873

Metz, James and Uy, Brad (2024) Special year. At Right Angles. pp. 42-43. ISSN 2582-1873

Miraj, Rahil (2020) Extension of an INMO Geometry Problem. At Right Angles (8). pp. 37-39. ISSN 2582-1873

Miraj, Rahil (2019) Finding the number of ordered tuples having a given LCM. At Right Angles. pp. 28-31. ISSN 2582-1873

Miraj, Rahil (2020) Pell's Equation. At Right Angles (7). pp. 72-74. ISSN 2582-1873

Miraj, Rahil (2019) Radii of in-circle and ex-circles of a right- angled triangle. At Right Angles (4). pp. 27-30. ISSN 2582-1873

Mishra, Kumar Gandharv (2019) Addendum to hill ciphers. At Right Angles. pp. 23-27. ISSN 2582-1873

Mishra, Kumar Gandharv (2024) Detecting poisoned samples: A computational thinking activity using binary arithmetic. At Right Angles. pp. 11-21. ISSN 2582-1873

Mishra, Kumar Gandharv (2021) A utilitarian math world : the tail that wags the dog. At Right Angles (9). pp. 17-22. ISSN 2582-1873

Mishra, P and Gaurav, B (2013) Introducing Ambigrams. At Right Angles, 2 (3).

Mishra, Punya (2013) The mathematical “i”. At Right Angles, 2 (1). pp. 68-69.

Mishra, Punya and Bhatnagar, Gaurav (2014) Introducing symmetry. At Right Angles, 3 (1). pp. 25-30. ISSN 2582-1873

Mishra, Punya and Bhatnagar, Gaurav (2013) Of Art & math : introducing ambigrams. At Right Angles, 2 (3). pp. 28-33. ISSN 2582-1873

Mishra, Punya and Bhatnagar, Gaurav (2015) Of Art and mathematics paradoxes : true AND/OR false? At Right Angles, 4 (1). pp. 21-27. ISSN 2582-1873

Mishra, Punya and Bhatnagar, Gaurav (2015) Paradoxes: Part 2 of 2. At Right Angles, 4 (2). pp. 9-14.

Modi, Paraj (2023) Book Review: A Mathematician’s Apology, by G.H. Hardy. At Right Angles. pp. 76-77. ISSN 2582-1873

Mohan, Devang S Ram (2013) Mathematical make-believe? mat(c)h made in Heaven. At Right Angles, 2 (2). pp. 26-31. ISSN 2582-1873

Mohan, R (2024) Measuring Javelin Throws with a Broken Tape. At Right Angles (18). ISSN 2582-1873

Monteiro, Vivek (2019) W.W. Sawyer - the universal math teacher. At Right Angles. pp. 18-22. ISSN 2582-1873

Mouli, Haran (2021) Summing V: a correction. At Right Angles (9). pp. 89-90. ISSN 2582-1873

Mouli, Haran (2022) Triangles and Pell’s equation. At Right Angles (12). pp. 123-124. ISSN 2582-1873

Mouli, Haran and Gandhi, Mahavir and Chavan, Sarth (2021) Rational ‘twin’ isosceles triangles. At Right Angles. pp. 115-119. ISSN 2582-1873

Mukherjee, Shreya (2023) Integer Board Game. At Right Angles. pp. 19-24. ISSN 2582-1873

Mukhopadhyay, Utpal (2023) Derivation of formulae for solving some common arithmetic problems. At Right Angles. pp. 20-23. ISSN 2582-1873

Mukhopadhyay, Utpal (2018) Ramanujan and some elementary mathematical problems. At Right Angles, 7 (1). pp. 13-21. ISSN 2582-1873

Mukhopadhyay, Utpal (2021) Some results concerning regular polygons. At Right Angles (9). pp. 79-83. ISSN 2582-1873

Mukunda, Kamala (2017) Knowing and teaching elementary mathematics. At Right Angles, 6 (1). pp. 80-84.

Mukunda, Kamala. (2012) Analyzing games of chance with math . . . fair game. At Right Angles, 1 (2). pp. 10-15. ISSN 2582-1873

Mukunda, Keerthi and Mukunda, Kamala (2021) Review of the Film Secrets of the Surface by George Csicsery, 2020. At Right Angles (9). pp. 96-98. ISSN 2582-1873

Mukunda, Keshav (2014) A natural history of information. At Right Angles, 3 (2). pp. 77-81. ISSN 2582-1873

Mukunda, N (2013) Book reviews. At Right Angles, 2 (3). pp. 66-74. ISSN 2582-1873

Mundhara, Shreya (2023) Guess the Card. At Right Angles. pp. 60-62. ISSN 2582-1873

Murthy, M. Narasimha (2019) Brahmagupta’s theorem. At Right Angles (5). p. 27. ISSN 2582-1873

NEMA, JYOTI and AGGARWAL, POONAM (2023) On a Link between Three Trigonometric Identities for a Triangle. At Right Angles. pp. 47-49. ISSN 2582-1873

Naik, Arun (2012) Pitfalls in …the method of induction : the perils of teaching by example. At Right Angles, 1 (2). pp. 48-51. ISSN 2582-1873

Nair, Thamban M. (2022) An Iterative Approximation of π. At Right Angles (14). pp. 84-91. ISSN 2582-1873

Nair, Vinay (2015) Algebracadabra magic squares ; with prime entries. At Right Angles, 4 (3). pp. 16-19.

Nair, Vinay (2019) Cutting a square into equal parts. At Right Angles. pp. 32-37. ISSN 2582-1873

Nair, Vinay (2017) Divisibility by primes. At Right Angles, 6 (2). pp. 63-66. ISSN 2582-1873

Nair, Vinay (2018) Fractional triplets. At Right Angles, 7 (1). pp. 83-86.

Nair, Vinay (2020) Trials with triangles. At Right Angles (6). pp. 19-22. ISSN 2582-1873

Nair, Vinay (2019) A mathematical pilgrimage : Ramanujan yatra. At Right Angles (5). pp. 5-10. ISSN 2582-1873

Nandi, Avipsha (2020) A Friendly Pair of Triangles. At Right Angles. pp. 79-85. ISSN 2582-1873

Nandi, Avipsha (2019) Orthocentre of a triangle and its distance from any point in the plane. At Right Angles (5). pp. 58-65. ISSN 2582-1873

Nandivada, Vedanth (2023) Common Errors in Interpretation of Correlation, Causation, and Association in Research. At Right Angles. pp. 13-18. ISSN 2582-1873

Narasimhan, Keshav Lakshmi (2021) Extended version of riffle shuffles. At Right Angles (10). pp. 101-103. ISSN 2582-1873

Narasimhan, Keshav Lakshmi (2021) Mathematical investigations : restoring order through repeated riffle shuffles. At Right Angles (10). pp. 49-56. ISSN 2582-1873

Narasimhan, M. S. (2020) The mathematics of India by P.P. Divakaran. At Right Angles (6). pp. 77-81. ISSN 2582-1873

Onkar, Venkatesh (2018) 1089 and all that : a journey into mathematics. At Right Angles, 7 (3). pp. 106-108. ISSN 2582-1873

Orlin, Ben (2013) A fight with Euclid. At Right Angles, 2 (3). pp. 9-13. ISSN 2582-1873

Oxman, Victor (2017) A proof without words. At Right Angles, 6 (2). p. 73. ISSN 2582-1873

Oxman, Victor and Stupel, Moshe (2020) An Angle Bisector in a Right Triangle. At Right Angles. p. 25. ISSN 2582-1873

PARINITHA, M (2023) A Problem from Madhava Mathematics Competition 2023. At Right Angles. pp. 76-77. ISSN 2582-1873

Padyala, Radhakrishnamurty (2022) Construction of a Tunnel Through a Mountain. At Right Angles (14). pp. 21-23. ISSN 2582-1873

Padyala, Radhakrishnamurty (2020) Geometrical proof of an application of Ptolemy’s theorem. At Right Angles (6). pp. 43-44. ISSN 2582-1873

Padyala, Radhakrishnamurty (2021) An easy proof of Ptolemy’s theorem. At Right Angles. pp. 66-68. ISSN 2582-1873

Pandey, Sumit Kumar (2025) Shuffling towards mathematics: UNO as a classroom tool. At Right Angles (21). pp. 38-42. ISSN 2582-1873

Parcha, Ankush Kumar (2023) Menelaus’s Theorem. At Right Angles. pp. 87-88. ISSN 2582-1873

Parcha, Ankush Kumar and Sharma, Toyesh Prakash (2022) A Property of a Class of Polygons. At Right Angles (14). pp. 60-62. ISSN 2582-1873

Parthiv, Dedasaniya (2017) An investigation with triangles & circles. At Right Angles, 6 (2). pp. 69-72. ISSN 2582-1873

Patel, Tejash (2018) Using coordinate geometry to find the GCD and LCM of two numbers a & b. At Right Angles, 7 (1). pp. 58-59. ISSN 2582-1873

Patil, Swasti and Laxshmisha, Siddharth and Christino, Davin (2021) Exploring and connecting : inradius and factorisation. At Right Angles. pp. 73-78. ISSN 2582-1873

Patnaik, Rajkishore (2013) Numberphile. At Right Angles, 2 (1). p. 64.

Patni, Suketu (2022) Ellipses hidden in projectile motion. At Right Angles (12). pp. 74-79. ISSN 2582-1873

Patodi, Ankit (2021) Interpretation of divisibility rules. At Right Angles (9). pp. 23-28. ISSN 2582-1873

Pawar, Mangal and Kanhere, Aaloka (2021) Children’s algorithms and the mathematics behind them. At Right Angles (10). pp. 23-28. ISSN 2582-1873

Prabu, Raghav Jeyan (2022) On Mountain Numbers. At Right Angles (14). pp. 63-66. ISSN 2582-1873

Prakash, Anand (2020) Magic Squares Using Semi-Primes. At Right Angles. pp. 39-40. ISSN 2582-1873

Prakash, Anand (2022) Prime generating polynomials. At Right Angles (12). pp. 115-118. ISSN 2582-1873

Prakash, Anand (2021) A Problem concerning Prime Numbers. At Right Angles (9). pp. 68-71. ISSN 2582-1873

Prakash, Anand (2023) Products of sums of all co-primes from 1 till any given number. At Right Angles. pp. 92-95. ISSN 2582-1873

Prakash, Anand (2023) Two 4-Digit Puzzles. At Right Angles. pp. 61-64. ISSN 2582-1873

Prakash, Anand (2019) A modified pascal triangle. At Right Angles (5). pp. 37-40. ISSN 2582-1873

Prasad, Ashok (2020) Conversations on greatest common divisor. At Right Angles (6). pp. 30-34. ISSN 2582-1873

Prasad, Phoolan (2018) Mathematics olympiads in India. At Right Angles, 7 (3). pp. 85-91. ISSN 2582-1873

Purkait, Soham (2020) A Property of the Modulo Operation in Number Theory. At Right Angles (7). ISSN 2582-1873

Purkait, Soham (2021) A relation between polynomial and exponential functions. At Right Angles. pp. 84-86. ISSN 2582-1873

R, ATHMARAMAN (2016) Problems for the Middle School. At Right Angles, 5 (2). pp. 81-84.

R, Haragopal (2017) G-numbers. At Right Angles, 6 (3). pp. 59-63.

R, Mohan (2019) Book review of W.W. Sawyer’s Mathematician’s delight. At Right Angles. pp. 106-109. ISSN 2582-1873

R, Mohan (2024) The art of guesstimation - part 2 using fermi problems in a classroom setting. At Right Angles. pp. 36-41. ISSN 2582-1873

R, Ramanujam (2020) The mathematical artist of play: a tribute to john horton conway 26 december 1937 – 11 april 2020. At Right Angles (7). 8 -15. ISSN 2582-1873

R, Ramanujam (2020) A tribute to john horton conway’ – glossary of terms. At Right Angles (7). pp. 1-5. ISSN 2582-1873

R., Athmaraman (2016) Problems for the middle school. At Right Angles, 5 (1). pp. 85-87. ISSN 2582-1873

R., Athmaraman (2015) Problems for the middle school. At Right Angles, 4 (1). pp. 59-61.

R., Athmaraman (2015) Problems for the middle school. At Right Angles, 4 (2). pp. 59-61.

R., Haragopal (2019) ‘CuRe’ triplets. At Right Angles (4). pp. 45-47. ISSN 2582-1873

R., Haragopal (2020) Hara’s triangle and triple. At Right Angles (6). pp. 23-25. ISSN 2582-1873

R., Haragopal (2022) Suma Numbers. At Right Angles (14). pp. 51-54. ISSN 2582-1873

R., Ramanujam (2022) Computational Thinking: The New Buzz. At Right Angles (13). pp. 23-31. ISSN 2582-1873

R., Ramanujam (2013) Paul Erdos-The artist of problem-posing : notes from a small suitcase. At Right Angles, 2 (2). pp. 5-10. ISSN 2582-1873

RVS, Rajagopalan (2018) Triangle inequality - a curious counting result. At Right Angles, 7 (2). pp. 39-41. ISSN 2582-1873

Radhu, Jaleel (2019) A challenging geometric construction problem. At Right Angles (5). pp. 81-82. ISSN 2582-1873

Raghunath, Sabitha and Bhansali, Sneha (2019) π enters the 5th class. At Right Angles (4). pp. 33-37. ISSN 2582-1873

Rajagopalan, A.S. (2020) Bisecting the Perimeter of a Triangle using Ruler and Compass. At Right Angles (8). pp. 70-72. ISSN 2582-1873

Rajagopalan, A.S. (2022) Fun with equivalent fractions. At Right Angles (12). pp. 48-49. ISSN 2582-1873

Rajagopalan, A.S. (2023) एकवृृन्तगतफलद्वृयन्यायः। ‘Two Fruits on One Stalk’. At Right Angles. pp. 53-55. ISSN 2582-1873

Rajesh, Adithya (2022) Galaxy of Unit Fractions with Tom and Jerry. At Right Angles (13). pp. 54-57. ISSN 2582-1873

Rajesh, Adithya (2019) Two striking number patterns. At Right Angles. pp. 54-56. ISSN 2582-1873

Rajesh, Sadagopan (2013) I dare to find a proof : area of a cyclic quadrilateral, Brahmagupta’s theorem. At Right Angles, 2 (2). pp. 11-14. ISSN 2582-1873

Rakshitha, and P. N., Subrahmanya (2021) A geometry problem from the Putnam 2019 competition. At Right Angles. pp. 102-104. ISSN 2582-1873

Ramachadran, A (2013) The Gregorian calendar. At Right Angles, 2 (3). pp. 1-3. ISSN 2582-1873

Ramachandran, A (2014) From magic squares to magic carpets. At Right Angles, 3 (2). pp. 31-33.

Ramachandran, A (2014) A puzzle leading to some interesting mathematics. At Right Angles, 3 (1). pp. 36-37.

Ramachandran, A. (2015) Angle bisectors in a quardilateral. At Right Angles, 4 (1). pp. 33-35.

Ramachandran, A. (2021) Bachet’s problem. At Right Angles. pp. 64-65. ISSN 2582-1873

Ramachandran, A. (2017) Congruency and constructibility in triangles. At Right Angles, 6 (1). pp. 50-52. ISSN 2582-1873

Ramachandran, A. (2019) DIY problems for the middle school. At Right Angles (4). pp. 84-86. ISSN 2582-1873

Ramachandran, A. (2019) Generalising the divisibility tests of 9 and 11. At Right Angles (5). pp. 32-33. ISSN 2582-1873

Ramachandran, A. (2013) Geometric solution to the 120 degree problem. At Right Angles, 2 (3). p. 1. ISSN 2582-1873

Ramachandran, A. (2018) Mapping triangle shapes. At Right Angles, 7 (2). pp. 67-71. ISSN 2582-1873

Ramachandran, A. (2021) Middle School Problems on Polygons. At Right Angles (9). pp. 72-75. ISSN 2582-1873

Ramachandran, A. (2016) Middle school mathematics : some reflections. At Right Angles, 5 (3). pp. 39-41. ISSN 2582-1873

Ramachandran, A. (2018) Middle school problems understanding circular motion. At Right Angles, 7 (2). pp. 117-120. ISSN 2582-1873

Ramachandran, A. (2019) Middle school problems on averages. At Right Angles (5). pp. 74-76. ISSN 2582-1873

Ramachandran, A. (2021) Middle school problems on the weighted average. At Right Angles (10). pp. 62-63. ISSN 2582-1873

Ramachandran, A. (2020) Middle school problems requiring exhaustive search. At Right Angles (6). pp. 67-68. ISSN 2582-1873

Ramachandran, A. (2021) Middle school problems-theme: number of digits. At Right Angles. pp. 69-70. ISSN 2582-1873

Ramachandran, A. (2020) Miscellaneous problems for the Middle School. At Right Angles (8). pp. 63-65. ISSN 2582-1873

Ramachandran, A. (2023) On the circumcentres of isosceles trapezia. At Right Angles. pp. 32-34. ISSN 2582-1873

Ramachandran, A. (2020) Problems for the middle school. At Right Angles. pp. 93-95. ISSN 2582-1873

Ramachandran, A. (2019) Problems for the middle school. At Right Angles. pp. 100-105. ISSN 2582-1873

Ramachandran, A. (2018) Problems for the middle school problems related to divisibility. At Right Angles, 7 (3). pp. 69-73. ISSN 2582-1873

Ramachandran, A. (2022) Problems on Number Bases. At Right Angles (14). p. 37. ISSN 2582-1873

Ramachandran, A. (2023) A Question about 3-Digit Numbers. At Right Angles. p. 51. ISSN 2582-1873

Ramachandran, A. (2020) Relations among lengths and angles in general parallelograms. At Right Angles (7). pp. 53-57. ISSN 2582-1873

Ramachandran, A. (2022) Six problems on area and perimeter. At Right Angles (12). pp. 50-53. ISSN 2582-1873

Ramachandran, A. (2023) Solution to a Question about 3-Digit Numbers. At Right Angles. p. 59. ISSN 2582-1873

Ramachandran, A. (2022) Solutions to Problems on Number Bases. At Right Angles (14). p. 59. ISSN 2582-1873

Ramachandran, A. (2020) Solutions to search problems. At Right Angles (6). pp. 75-76. ISSN 2582-1873

Ramachandran, A. (2018) Some down-to-earth trigonometry. At Right Angles, 7 (3). pp. 53-58. ISSN 2582-1873

Ramachandran, A. (2020) Triangle centres : barycentric coordinates. At Right Angles (6). pp. 52-56. ISSN 2582-1873

Ramachandran, A. (2016) Triangle centres and homogeneous coordinates, Part I - trilinear Coordinates. At Right Angles, 5 (1). pp. 40-43. ISSN 2582-1873

Ramachandran, A. (2015) Triangle centres in an isosceles triangle. At Right Angles, 4 (3). pp. 30-34.

Ramachandran, A. (2013) Triangles with sides in a progression. At Right Angles, 2 (1). pp. 39-40.

Ramachandran, A. (2012) The four-gon family tree. At Right Angles, 1 (1). pp. 53-57.

Ramachandran, A. (2019) The truncated icosahedron : an iconic 3-D shape. At Right Angles. pp. 69-71. ISSN 2582-1873

Ramachandran, A. (2020) A word and an idea. At Right Angles (6). p. 42. ISSN 2582-1873

Ramachandran, A. (2019) A path to π. At Right Angles. pp. 31-32. ISSN 2582-1873

Ramalingam, Ramya (2017) Tying it up … knot theory … without loose ends. At Right Angles, 6 (1). pp. 5-13. ISSN 2582-1873

Ramanujam, R (2017) Review of G H Hardy’s a mathematician's apology. At Right Angles, 6 (3). pp. 112-116.

Ramanujam, R (2015) Review of “The crest of the Peacock: Non-European roots of mathematics”. At Right Angles, 4 (2). pp. 64-68. ISSN 2582-1873

Ramanujam, R. (2014) Review of Kim Plofker’s mathematics in India. At Right Angles, 3 (3). pp. 82-88.

Ramesh, Sreekantan (2013) Yitang Zhang and the twin primes conjecture. At Right Angles, 2 (3). pp. 14-17. ISSN 2582-1873

Ramprashanth, V. (2017) Tonic ambiguity. At Right Angles, 6 (3). pp. 22-26.

Ramya, P. S. (2017) Knot theory addendum. At Right Angles, 6 (1). p. 14. ISSN 2582-1873

Rane, Ujjawal (2021) A property of the centroid of a triangle. At Right Angles (10). pp. 60-61. ISSN 2582-1873

Rane, Ujjwal (2017) Fagnano's problem : a geometric solution. At Right Angles, 6 (1). pp. 21-24.

Rane, Ujjawal (2017) Fagnano’s theorem: alternative proof. At Right Angles, 6 (3). pp. 50-52. ISSN 2582-1873

Rao, Muralidhar and M, Parinitha (2023) A Problem from the Putnam 2022 Competition. At Right Angles. pp. 83-86. ISSN 2582-1873

Rao, Muralidhar and M, Parinitha (2023) A number theory problem from Hungarian math olympiad. At Right Angles. pp. 66-68. ISSN 2582-1873

Rathore, Rahul Singh (2025) Understanding a circle through paper folding. At Right Angles (21). pp. 16-20. ISSN 2582-1873

Roy, Biplab (2022) On a method for solving cubic equations. At Right Angles (12). pp. 58-59. ISSN 2582-1873

Rudra, Sanjib (2018) Alternative solution to ‘a triangle problem’. At Right Angles, 7 (2). pp. 121-122. ISSN 2582-1873

S, Jayasree (2021) Quantifying steepness – a reflection. At Right Angles. pp. 31-37. ISSN 2582-1873

S., Yathiraj (2023) Math-Magic Generalized Fermat Numbers. At Right Angles. pp. 52-55. ISSN 2582-1873

SHIRALI, SHAILESH A. (2015) How to prove it. At Right Angles, 4 (1).

SINGHA, SUJATA (2023) Sums of Powers of Any Composite Number. At Right Angles. pp. 34-36. ISSN 2582-1873

Sadagopan, Rajesh (2021) My Square is your Triangle! – The king said to Pascal. At Right Angles. pp. 38-43. ISSN 2582-1873

Saha, Arnabi (2023) Proof Without Words: Alternating Sum of Odd Numbers. At Right Angles. pp. 42-44. ISSN 2582-1873

Saha, Suhas (2017) Teaching the ternary base using a card trick. At Right Angles, 6 (2). pp. 22-29. ISSN 2582-1873

Sanapala, Seetha Rama Raju (2018) Why does Euclid’s GCD algorithm work? At Right Angles, 7 (1). pp. 60-61. ISSN 2582-1873

Saroj, Ram Kumar (2023) Maths Mela: A Unique Measurement Fair in a School. At Right Angles. pp. 25-30. ISSN 2582-1873

Sasikumar, K (2023) A Conjecture equivalent to the Goldbach Conjecture, and some Consequences. At Right Angles. pp. 56-58. ISSN 2582-1873

Sastri, Sivasankara (2012) Paper folding and the theorem of Pythagoras. At Right Angles, 1 (1). pp. 48-52.

Sastry, K. M. (2023) A divisibility chain problem. At Right Angles. pp. 96-97. ISSN 2582-1873

Sathvik, Haren (2018) Arc - centre theorem. At Right Angles, 7 (3). pp. 34-36. ISSN 2582-1873

Satya, Gowri and , Ashwin and , Shravan and , Shivkumar (2022) Maths from simple grids. At Right Angles (12). pp. 29-34. ISSN 2582-1873

Sensowa, Progyan (2023) An algorithmic approach to multiplication using “ekadhikena purvena sutra”. At Right Angles. pp. 15-19. ISSN 2582-1873

Sethuraman, B A (2013) Fermat numbers. At Right Angles, 2 (3). pp. 19-23. ISSN 2582-1873

Sett, K. (2020) A Very Special Congruency Problem. At Right Angles (8). pp. 73-76. ISSN 2582-1873

Sett, Kousik (2021) A problem related to an equilateral triangle. At Right Angles (10). pp. 86-92. ISSN 2582-1873

Shah, Druhan and Rakshitha, R (2020) Study of an Inequality Problem from an Olympiad - Part 1. At Right Angles (7). pp. 75-78. ISSN 2582-1873

Shah, Kian (2022) Problem 61 from KVPY 2016. At Right Angles (13). pp. 62-63. ISSN 2582-1873

Shah, Tanuj (2012) Three centuries of brain racking discovery xn + yn =zn ? At Right Angles, 1 (1). pp. 61-63. ISSN 2582-1873

Shah, Tanuj (2016) A diagonal investigation. At Right Angles, 5 (2). pp. 38-41.

Shah, Tanuj (2013) A fascination for counting. At Right Angles, 2 (2). pp. 47-49. ISSN 2582-1873

Shah, Tanuj (2016) A review of taming the infinite. At Right Angles, 5 (1). ISSN 2582-1873

Shaikh, Majid (2015) Divisibility tests by powers of 2. At Right Angles, 4 (2). pp. 20-23.

Shailesh, Shirali (2014) Harmonic triples. At Right Angles, 3 (1). pp. 20-24.

Sharili, Shailesh (2017) How to prove it. At Right Angles, 6 (3). pp. 40-42.

Sharma, Rajat (2020) Book review: A Focus on fractions – bringing research to the classroom. At Right Angles. pp. 106-110. ISSN 2582-1873

Sharma, Toyesh Prakash (2023) Divergence and convergence of two closely related infinite series. At Right Angles. pp. 98-100. ISSN 2582-1873

Sharma, Toyesh Prakash (2023) Four problems on surds. At Right Angles. pp. 59-62. ISSN 2582-1873

Sharma, Toyesh Prakash (2022) Problems Based on the AM-GM Inequality – I. At Right Angles (14). pp. 81-83. ISSN 2582-1873

Sharma, Toyesh Prakash (2023) Problems based on the AM-GM Inequality - Part II. At Right Angles. pp. 107-110. ISSN 2582-1873

Sharma, Toyesh Prakash and Sharma, Etisha (2023) Maxima and Minima using the Power Mean Inequality. At Right Angles. pp. 103-106. ISSN 2582-1873

Sharma, Shailaja D (2018) Visual method for fraction multiplication. At Right Angles, 7 (2). pp. 55-58. ISSN 2582-1873

Shavit, Eyal N. (2020) Deriving the Golden Ratio using a Scientific Calculator. At Right Angles (8). pp. 47-52. ISSN 2582-1873

Shirali, Padmapriya (2020) Angles. At Right Angles (6). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2018) Approaches to equation. At Right Angles, 7 (3). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2024) As hot as math? As cool as math? At Right Angles. 02-15. ISSN 2582-1873

Shirali, Padmapriya (2024) As hot as math? As cool as math? At Right Angles. 02-15. ISSN 2582-1873

Shirali, Padmapriya (2021) Coordinates. At Right Angles. pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2014) Division : a visual approach. At Right Angles, 3 (2). pp. 1-15. ISSN 2582-1873

Shirali, Padmapriya (2021) Estimation in mathematics. At Right Angles (10). pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2013) Exploration of Recurring Decimals. At Right Angles, 2 (3). pp. 49-52. ISSN 2582-1873

Shirali, Padmapriya (2020) Finding mathematics, playing mathematics experiencing mathematics. At Right Angles (8). pp. 83-86. ISSN 2582-1873

Shirali, Padmapriya (2012) Fraction: a paper folding approach. At Right Angles, 1 (1). pp. 80-86.

Shirali, Padmapriya (2018) Introduction to algebra. At Right Angles, 7 (1). pp. 1-11. ISSN 2582-1873

Shirali, Padmapriya (2019) Introduction to algebra - IV. At Right Angles. pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2018) Introduction to algebra-II. At Right Angles, 7 (2). pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2023) Logic, Reasoning and Proof. At Right Angles. pp. 2-14. ISSN 2582-1873

Shirali, Padmapriya (2024) MASTERY OF MULTIPLICATION. At Right Angles (18). ISSN 2582-1873

Shirali, Padmapriya (2022) Math Projects Scale Drawings. At Right Angles (14). pp. 1-11. ISSN 2582-1873

Shirali, Padmapriya (2024) Money. At Right Angles (20). pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2024) Money. At Right Angles (20). pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2023) NEWSPAPERS IN THE MATHEMATICS CLASS. At Right Angles. pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2022) Number bases (Pullout-Mar). At Right Angles (12). ISSN 2582-1873

Shirali, Padmapriya (2013) Number operations : addition, a practical approach. At Right Angles, 2 (2). ISSN 2582-1873

Shirali, Padmapriya (2020) Parallel Lines. At Right Angles (7). pp. 8-15. ISSN 2582-1873

Shirali, Padmapriya (2025) Patterns & pre-algebra. At Right Angles (21). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2019) Percentages. At Right Angles (5). pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2013) Place value : a paper kit approach. At Right Angles, 2 (1). pp. 1-12.

Shirali, Padmapriya (2020) Quadrilaterals. At Right Angles (8). pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2019) Ratio. At Right Angles (4). ISSN 2582-1873

Shirali, Padmapriya (2022) Spatial thinking with 3-D objects. At Right Angles (13). ISSN 2582-1873

Shirali, Padmapriya (2023) Speed, test, distance and graphs. At Right Angles. pp. 2-11. ISSN 2582-1873

Shirali, Padmapriya (2017) Teaching Time. At Right Angles, 6 (1). pp. 1-16.

Shirali, Padmapriya (2016) Teaching data handling. At Right Angles, 5 (3). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2012) Teaching decimal fractions - a paper kit approach. At Right Angles, 1 (2). pp. 1-7. ISSN 2582-1873

Shirali, Padmapriya (2014) Teaching geometry at the primary level. At Right Angles, 3 (3). pp. 1-12. ISSN 2582-1873

Shirali, Padmapriya (2015) Teaching geometry-II. At Right Angles, 4 (1). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2017) Teaching integers. At Right Angles, 6 (3). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2015) Teaching measurement. At Right Angles, 4 (2). pp. 1-12.

Shirali, Padmapriya (2014) Teaching multiplication : a visual approach. At Right Angles, 3 (1). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2013) Teaching subtraction. At Right Angles, 2 (3). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2015) Teaching thinking skills. At Right Angles, 4 (3). pp. 1-12.

Shirali, Padmapriya (2016) Teaching word problems : a practical approach. At Right Angles, 5 (1). pp. 1-20. ISSN 2582-1873

Shirali, Padmapriya (2021) Triangles. At Right Angles (9). pp. 1-16. ISSN 2582-1873

Shirali, Padmapriya (2017) The secret world of large numbers. At Right Angles, 6 (2). pp. 2-11. ISSN 2582-1873

Shirali, Shailesh (2015) 1,5,3 and so on and on and on …. At Right Angles, 4 (2). pp. 24-25.

Shirali, Shailesh (2016) 3, 4, 5... and other memorable triples-part III. At Right Angles, 5 (1). pp. 32-39. ISSN 2582-1873

Shirali, Shailesh (2015) 3, 4, 5...and other memorable triples – Part II. At Right Angles, 4 (3). pp. 11-15. ISSN 2582-1873

Shirali, Shailesh (2015) 3,4,5...And other memorable triples – Part I. At Right Angles, 4 (2). pp. 15-19.

Shirali, Shailesh (2019) Addendum to theorem concerning - a magic triangle. At Right Angles. pp. 51-53. ISSN 2582-1873

Shirali, Shailesh (2022) Addendum to “Six Problems on Area and Perimeter’’. At Right Angles (12). pp. 54-57. ISSN 2582-1873

Shirali, Shailesh (2021) Addendum to “lessons from proofs. At Right Angles (10). p. 35. ISSN 2582-1873

Shirali, Shailesh (2017) Adventures in problem solving. At Right Angles, 6 (3). pp. 108-111.

Shirali, Shailesh (2018) Adventures in problem solving. At Right Angles, 7 (3). pp. 79-84. ISSN 2582-1873

Shirali, Shailesh (2019) Adventures in problem solving. At Right Angles (4). pp. 96-101. ISSN 2582-1873

Shirali, Shailesh (2020) Adventures in problem solving. At Right Angles (6). pp. 72-74. ISSN 2582-1873

Shirali, Shailesh (2019) Adventures in problem solving. At Right Angles. pp. 92-96. ISSN 2582-1873

Shirali, Shailesh (2018) Adventures in problem solving : a problem about divisors. At Right Angles, 7 (2). pp. 130-132.

Shirali, Shailesh (2017) Adventures in problem-solving : a math olympiad problem... and a few cousins. At Right Angles, 6 (2). pp. 101-105.

Shirali, Shailesh (2018) Adventures in problem-solving miscellaneous problems from the RMOs. At Right Angles, 7 (1). pp. 112-116.

Shirali, Shailesh (2022) Analysis of the angle trisection procedure. At Right Angles (12). pp. 110-114. ISSN 2582-1873

Shirali, Shailesh (2016) And other memorable triples. At Right Angles, 5 (2). pp. 27-33.

Shirali, Shailesh (2022) Approximate Angle Constructions. At Right Angles (14). pp. 41-42. ISSN 2582-1873

Shirali, Shailesh (2016) Approximate constructions of certain angles. At Right Angles, 5 (3). pp. 49-52. ISSN 2582-1873

Shirali, Shailesh (2018) Arsalan’s amazing area problems. At Right Angles, 7 (3). pp. 92-100. ISSN 2582-1873

Shirali, Shailesh (2016) Complex Napoleon's theorem made simple - part 1. At Right Angles, 5 (3). pp. 5-11. ISSN 2582-1873

Shirali, Shailesh (2017) Complex Napoleon's theorem made simple - part 2. At Right Angles, 6 (3). pp. 28-30. ISSN 2582-1873

Shirali, Shailesh (2023) Congruency, A Trigonometric View. At Right Angles. pp. 65-67. ISSN 2582-1873

Shirali, Shailesh (2014) Equalizers of a triangle. At Right Angles, 3 (2). pp. 14-17. ISSN 2582-1873

Shirali, Shailesh (2020) Euler’s inequality for the circumradius and inradius of a triangle. At Right Angles (6). pp. 58-62. ISSN 2582-1873

Shirali, Shailesh (2018) Extending the definitions of GCD and LCM to fractions. At Right Angles, 7 (2). pp. 33-38. ISSN 2582-1873

Shirali, Shailesh (2017) Fagnano's problem Addendum. At Right Angles, 6 (1). pp. 25-28.

Shirali, Shailesh (2015) Generalization and specialization - the strange Case of the Pythagorean theorem. At Right Angles, 4 (1). pp. 28-32. ISSN 2582-1873

Shirali, Shailesh (2018) Geometric proof of a trigonometric identity. At Right Angles, 7 (3). p. 47. ISSN 2582-1873

Shirali, Shailesh (2023) Geometric proofs of two trigonometric identities. At Right Angles. pp. 46-50. ISSN 2582-1873

Shirali, Shailesh (2017) Harmonic triangular triples. At Right Angles, 6 (3). pp. 89-95.

Shirali, Shailesh (2020) How To Prove It. At Right Angles (7). pp. 48-52. ISSN 2582-1873

Shirali, Shailesh (2021) How To Prove It. At Right Angles (9). pp. 43-48. ISSN 2582-1873

Shirali, Shailesh (2015) How do we explain their success? understanding the formulas. At Right Angles, 4 (1). pp. 16-20. ISSN 2582-1873

Shirali, Shailesh (2015) How to prove it. At Right Angles, 4 (1). pp. 36-39. ISSN 2582-1873

Shirali, Shailesh (2016) How to prove it. At Right Angles, 5 (1). pp. 54-58. ISSN 2582-1873

Shirali, Shailesh (2012) How to generate Pythagorean triples - 1. At Right Angles, 1 (1). pp. 29-32.

Shirali, Shailesh (2013) How to prove It. At Right Angles, 2 (3). pp. 37-40. ISSN 2582-1873

Shirali, Shailesh (2015) How to prove It. At Right Angles, 4 (2). pp. 44-47.

Shirali, Shailesh (2014) How to prove it. At Right Angles, 3 (2). pp. 54-58.

Shirali, Shailesh (2018) How to prove it. At Right Angles, 7 (1). pp. 87-90. ISSN 2582-1873

Shirali, Shailesh (2017) How to prove it. At Right Angles, 6 (1). pp. 59-63. ISSN 2582-1873

Shirali, Shailesh (2018) How to prove it. At Right Angles, 7 (2). pp. 95-100. ISSN 2582-1873

Shirali, Shailesh (2019) How to prove it. At Right Angles (4). pp. 70-76. ISSN 2582-1873

Shirali, Shailesh (2019) How to prove it. At Right Angles (5). pp. 51-57. ISSN 2582-1873

Shirali, Shailesh (2014) How to prove it. At Right Angles, 3 (1). pp. 54-57. ISSN 2582-1873

Shirali, Shailesh (2015) How to prove it. At Right Angles, 4 (3). pp. 50-55. ISSN 2582-1873

Shirali, Shailesh (2016) How to prove it. At Right Angles, 5 (3). pp. 53-57. ISSN 2582-1873

Shirali, Shailesh (2018) Inequalities in algebra and geometry. At Right Angles, 7 (1). pp. 75-79.

Shirali, Shailesh (2017) Inequalities in algebra and geometry. At Right Angles, 6 (1). pp. 53-58.

Shirali, Shailesh (2017) Inequalities in algebra and geometry. At Right Angles, 6 (3). pp. 67-72.

Shirali, Shailesh (2017) Inequalities in algebra and geometry part 2. At Right Angles, 6 (2). pp. 38-47.

Shirali, Shailesh (2023) Interesting infinite, recurring decimals. At Right Angles. pp. 43-45. ISSN 2582-1873

Shirali, Shailesh (2021) Kohli’s number 2997. At Right Angles (9). pp. 112-114. ISSN 2582-1873

Shirali, Shailesh (2019) Lattice point geometry, part-I. At Right Angles. pp. 5-10. ISSN 2582-1873

Shirali, Shailesh (2018) On divisibility by 27. At Right Angles, 7 (1). pp. 62-65.

Shirali, Shailesh (2023) On trisecting an angle. At Right Angles. pp. 53-58. ISSN 2582-1873

Shirali, Shailesh (2013) One equation . . . many connects harmonic triples. At Right Angles, 2 (1). pp. 20-23.

Shirali, Shailesh (2022) The Opening Bracket . . . Learning how to think. At Right Angles (13). ISSN 2582-1873

Shirali, Shailesh (2023) Opening Bracket... On proof and reasoning in the teaching of mathematics. At Right Angles. ISSN 2582-1873

Shirali, Shailesh (2013) PHTs …primitive and beautiful harmonic triples, part–2. At Right Angles, 2 (2). pp. 20-24. ISSN 2582-1873

Shirali, Shailesh (2019) PPT explorations. At Right Angles. pp. 59-60. ISSN 2582-1873

Shirali, Shailesh (2020) Pretty power play. At Right Angles (6). pp. 45-47. ISSN 2582-1873

Shirali, Shailesh (2012) Proof without words. At Right Angles, 1 (1). pp. 14-16. ISSN 2582-1873

Shirali, Shailesh (2017) Quadrilaterals with perpendicular diagonals. At Right Angles, 6 (2). pp. 30-37.

Shirali, Shailesh (2022) Repunit Primes. At Right Angles (14). pp. 45-46. ISSN 2582-1873

Shirali, Shailesh (2018) Stirling set numbers & powers of integers. At Right Angles, 71 (1). pp. 26-32.

Shirali, Shailesh (2020) Sums of cubes. At Right Angles (6). pp. 10-14. ISSN 2582-1873

Shirali, Shailesh (2018) Theorem concerning a magic triangle. At Right Angles, 7 (2). pp. 86-90. ISSN 2582-1873

Shirali, Shailesh (2015) Theorems on magic squares. At Right Angles, 4 (3). pp. 43-47. ISSN 2582-1873

Shirali, Shailesh (2022) Triangles with one angle twice another. At Right Angles (12). pp. 62-66. ISSN 2582-1873

Shirali, Shailesh (2023) Two New Proofs of the Pythagorean Theorem - Part I. At Right Angles. pp. 7-12. ISSN 2582-1873

Shirali, Shailesh (2023) Two New Proofs of the Pythagorean Theorem - Part II. At Right Angles. pp. 7-11. ISSN 2582-1873

Shirali, Shailesh (2020) What can we construct? – part 1. At Right Angles (7). pp. 8-18. ISSN 2582-1873

Shirali, Shailesh (2015) When does it have maximum area? At Right Angles, 4 (2). pp. 53-54.

Shirali, Shailesh (2016) An astonishing property of third-order magic squares. At Right Angles, 5 (1). pp. 50-53. ISSN 2582-1873

Shirali, Shailesh (2013) The closing bracket . . At Right Angles, 2 (3). ISSN 2582-1873

Shirali, Shailesh (2012) The closing bracket ... At Right Angles, 1 (2). p. 1.

Shirali, Shailesh (2020) The closing bracket : a tale of two viruses. At Right Angles (6). p. 82. ISSN 2582-1873

Shirali, Shailesh (2015) The closing bracket. At Right Angles, 4 (1).

Shirali, Shailesh (2019) The constants of mathematics - part IV : yet more on the remarkable number e. At Right Angles (4). pp. 10-18. ISSN 2582-1873

Shirali, Shailesh (2019) The constants of mathematics : More on the remarkable number e, part 3. At Right Angles. pp. 11-17. ISSN 2582-1873

Shirali, Shailesh (2018) The constants of mathematics – part II : the remarkable number e. At Right Angles, 7 (3). pp. 15-22. ISSN 2582-1873

Shirali, Shailesh (2018) The constants of mathematics. At Right Angles, 7 (2). pp. 19-27. ISSN 2582-1873

Shirali, Shailesh (2019) A counter-intuitive Pythagorean surprise. At Right Angles (4). pp. 19-21. ISSN 2582-1873

Shirali, Shailesh (2017) The exponential series: an addendum. At Right Angles, 6 (3). pp. 14-21.

Shirali, Shailesh (2019) A triangle area problem. At Right Angles (4). pp. 93-95. ISSN 2582-1873

Shirali, Shailesh and Athmaraman, R. (2012) Fun Problems : problems for the middle school, problems for the senior school. At Right Angles, 1 (1). pp. 67-75. ISSN 2582-1873

Shirali, Shailesh and De, Prithwijit (2015) Problem for the senior schools. At Right Angles, 4 (1). pp. 62-63. ISSN 2582-1873

Shirali, Shailesh and De, Prithwijit (2015) Problems for the senior school. At Right Angles, 4 (2). pp. 62-63.

Shirali, Shailesh and De, Prithwijit (2015) The problem for the senior schools. At Right Angles, 4 (3). pp. 93-94.

Shirali, Shailesh and Shirali, Padmapriya (2014) Exploration of recurring decimals:Some explanations. At Right Angles, 3 (1). pp. 40-48.

Shirali, Shailesh A (2016) How to prove it. At Right Angles, 5 (2). 58 -62.

Shirali, Shailesh A. (2012) The fine art of euclidean geometry Viviani’s theorem . . . and a cousin. At Right Angles, 1 (2). pp. 23-26.

Shukla, Ankit (2021) How long, how high, how wide. At Right Angles (10). pp. 36-41. ISSN 2582-1873

Sinclair, Parvin (2022) Rethinking Mathematics: Teaching Social Justice by the Numbers. At Right Angles (13). pp. 72-74. ISSN 2582-1873

Singh, Anant Pratap (2022) Searching for a 3rd Order Magic Square of Squares. At Right Angles (14). pp. 47-50. ISSN 2582-1873

Singh, Pooja Keshavan (2016) Dyscalculia: a little known learning disability. At Right Angles, 5 (3). pp. 42-45. ISSN 2582-1873

Singh, Vijay A. and Kumar, Aneesh (2024) Aryabhata and the Construction of the First Trigonometric Table. At Right Angles. pp. 1-10. ISSN 2582-1873

Sinha, Dikshha (2024) Constructing a square with the area 1/n of a given square. At Right Angles. pp. 60-62. ISSN 2582-1873

Sircar, Swati (2020) Definitions changing through time: With a closer look at isosceles trapeziums. At Right Angles (8). pp. 25-28. ISSN 2582-1873

Sircar, Swati (2019) Exploring properties of addition and multiplication with integers. At Right Angles (4). pp. 59-65. ISSN 2582-1873

Sircar, Swati (2018) Exploring properties of addition with whole numbers and fractions. At Right Angles, 7 (2). pp. 51-54.

Sircar, Swati (2019) Impossible triangle on rectangular dot sheet - another proof. At Right Angles (3). p. 110. ISSN 2582-1873

Sircar, Swati (2020) Impossible triangles on dot sheets. At Right Angles (6). ISSN 2582-1873

Sircar, Swati (2014) Letter to the editor. At Right Angles, 3 (1). p. 78. ISSN 2582-1873

Sircar, Swati (2019) Low floor high ceiling tasks : in-cyclic quads. At Right Angles (5). pp. 47-50. ISSN 2582-1873

Sircar, Swati (2018) Mini Review: Weird number. At Right Angles, 7 (1). p. 123.

Sircar, Swati (2021) Mini review : Bayes' theorem and independence by 3Blue1Brown. At Right Angles. pp. 101-103. ISSN 2582-1873

Sircar, Swati (2015) Of paper folding, geogebra and conics. At Right Angles, 4 (2). pp. 48-52.

Sircar, Swati (2015) Of paper-folding, geogebra and conics – Part II. At Right Angles, 4 (3). pp. 72-83.

Sircar, Swati (2024) Optimizing A Product : A Brilliant Use of Some Lateral Thinking! At Right Angles. ISSN 2582-1873

Sircar, Swati (2019) Properties of multiplication. At Right Angles. ISSN 2582-1873

Sircar, Swati (2021) Review: Ganitmala. At Right Angles (9). pp. 99-101. ISSN 2582-1873

Sircar, Swati (2021) Sketches and views: Mapping 3D to 2D and vice versa. At Right Angles. pp. 55-58. ISSN 2582-1873

Sircar, Swati (2018) Tear out : fun with dot sheets. At Right Angles, 7 (3). pp. 43-46. ISSN 2582-1873

Sircar, Swati (2019) Tearout : fun with dot sheets. At Right Angles (4). pp. 55-58. ISSN 2582-1873

Sircar, Swati (2019) Tearout : isometric sketches and more. At Right Angles (5). pp. 43-46. ISSN 2582-1873

Sircar, Swati (2015) Thoughts on the division operation. At Right Angles, 4 (2). pp. 36-39.

Sircar, Swati (2014) Un-folding. At Right Angles, 3 (2). pp. 42-48.

Sircar, Swati and Anupama, S.M. (2020) Developing Textbooks for Primary Mathematics. At Right Angles (8). pp. 81-82. ISSN 2582-1873

Sircar, Swati and Titus, Sneha (2015) Investigations with Pentominoes. At Right Angles, 4 (1). pp. 40-49. ISSN 2582-1873

Sircar, Swati and Titus, Sneha (2015) Investigations with Pentominoes. At Right Angles, 4 (1). pp. 40-49.

Sircar, Swati and Titus, Sneha (2019) Joining the dots... At Right Angles (4). pp. 48-53. ISSN 2582-1873

Sircar, Swati and Titus, Sneha (2015) Keeping things in proportion. At Right Angles, 4 (2). pp. 30-35.

Sircar, Swati and Titus, Sneha (2018) Low floor high ceiling : four-telling quadrilaterals. At Right Angles, 7 (2). pp. 42-50. ISSN 2582-1873

Sircar, Swati and Titus, Sneha (2016) Low floor high ceiling tasks - circle time. At Right Angles, 5 (3). pp. 30-38. ISSN 2582-1873

Sircar, Swati and Titus, Sneha (2018) Low floor high ceiling tasks here we go round… newer and newer spirals -open and shut cases. At Right Angles, 7 (1). pp. 66-71.

Sircar, Swati and Titus, Sneha (2017) Low floor high ceiling tasks sums of consecutive natural numbers. At Right Angles, 6 (2). pp. 57-62.

Sircar, Swati and Titus, Sneha (2016) Low floor high ceiling tasks try-angles! At Right Angles, 5 (1). pp. 63-67. ISSN 2582-1873

Sivaraman, R. (2021) Tremendous tree. At Right Angles (10). pp. 17-22. ISSN 2582-1873

Space, Math (2023) Assessing mathematical proficiency at the secondary stage – I. At Right Angles. pp. 24-29. ISSN 2582-1873

Space, Math (2023) How Much or Till What: When and Why? At Right Angles. pp. 31-33. ISSN 2582-1873

Space, Math (2020) Review: Arrow Cards. Review: Arrow Cards (7). pp. 1-3. ISSN 2582 - 1873

Sreedevi, Sindhu and Banrejee, Joyita and Titus, Sneha (2013) Teacher’s diary on classroom assessment. At Right Angles, 2 (3). pp. 41-45. ISSN 2582-1873

Sreedevi, Sindhu and Titus, Sneha (2014) Teacher’s diary on classroom assessment – II. At Right Angles, 3 (1). pp. 44-48. ISSN 2582-1873

Sreekantan, Ramesh (2016) A review of ‘my search for Ramanujan: how I learned to count’. At Right Angles, 5 (3). pp. 91-94. ISSN 2582-1873

Sriram, Tejas (2024) Fun with fractions. At Right Angles (20). pp. 42-46. ISSN 2582-1873

Stupel, Moshe and Fraivert, David (2023) Three Different Proofs for the Same Task. At Right Angles. pp. 31-34. ISSN 2582-1873

Stupel, Moshe and Oxman, Victor (2022) Stewart’s Theorem for a Right Triangle – A Compact Proof. At Right Angles (14). pp. 35-36. ISSN 2582-1873

Stupel, Moshe and Oxman, Victor (2018) An easy construction for the harmonic mean. At Right Angles, 7 (1). pp. 52-53. ISSN 2582-1873

Stupel, Moshe and Siegler, Dr. Avi (2017) Three elegant proofs of mathematical properties. At Right Angles, 6 (2). pp. 48-53.

Subramaniam, K. (2013) Pólya to the rescue: When you don’t know the solution to a problem. At Right Angles, 2 (1). pp. 60-63.

Subramaniam, K. (2018) The conjoining error in school algebra. At Right Angles, 7 (1). pp. 44-47.

Sundas, Sandhya (2020) The Closing Bracket... At Right Angles (7). pp. 1-2. ISSN 2582-1873

Suraiya Khan, Rida (2022) The Painter’s Paradox comparative analysis of Gabriel’s Horn and triangular pipe with Koch’s Fractal shaped cross section. At Right Angles (12). pp. 119-122. ISSN 2582-1873

Suresh, Dakshayini (2015) Review of "the sand reckoner" by gillian bradshaw. At Right Angles, 4 (3). pp. 95-99.

Sury, B (2013) Harmonic sequence and pascal’s triangle. At Right Angles, 2 (3). pp. 1-4.

Sury, B (2013) Set theory revisited : as easy as PIE principle of inclusion and exclusion, part 2. At Right Angles, 2 (2). pp. 15-19. ISSN 2582-1873

Swain, Mayadhar (2021) Two famous series for pi. At Right Angles (10). pp. 81-83. ISSN 2582-1873

TIKEKAR, V.G. (2014) There are infinitely many primes. At Right Angles, 3 (1). pp. 15-19. ISSN 2582-1873

TONAPI, ANUSHKA (2023) Explorations on the Sierpinski Gasket Graph. At Right Angles. pp. 78-85. ISSN 2582-1873

Takker, Shikha (2019) Understanding learners’ thinking through an analysis of errors. At Right Angles (4). pp. 38-44. ISSN 2582-1873

Tambade, Atharv (2022) Searching for Pythagorean Quadruples. At Right Angles (13). pp. 60-61. ISSN 2582-1873

Tanuj, Shah (2015) Investigations. At Right Angles, 4 (3). pp. 58-61. ISSN 2582-1873

Tikekar, R. (2020) Why Should You Study Mathematics? At Right Angles (8). pp. 6-14. ISSN 2582-1873

Tikekar, Rahul (2018) Ramanujan : what might have been, if only…. At Right Angles, 7 (3). pp. 23-25. ISSN 2582-1873

Tikekar, V. G. (2018) On the sums of powers of natural numbers, part 2. At Right Angles, 7 (1). pp. 22-25. ISSN 2582-1873

Tikekar, V.G. (2018) Addendum to power triangle. At Right Angles, 7 (2). pp. 28-29. ISSN 2582-1873

Tikekar, V.G. (2014) Morley’s miracle - part I. At Right Angles, 3 (2). pp. 10-13.

Tikekar, V.G. (2017) On the sums of powers of natural numbers. At Right Angles, 6 (3). pp. 5-8.

Tikekar, V.G. (2015) A Proof without words for Viviani´s theorem. At Right Angles, 4 (1). pp. 5-6. ISSN 2582-1873

Tikekar, V.G. (2022) Spoof Numbers and Spoof Solutions - Part II. At Right Angles (13). pp. 17-22. ISSN 2582-1873

Tikekar, V.G. (2021) Spoof numbers and spoof solutions - part I. At Right Angles. pp. 13-17. ISSN 2582-1873

Tikekar, VG (2013) There are infinitely many primes. At Right Angles, 2 (3). pp. 5-8. ISSN 2582-1873

Titus, Sneha (2022) The Closing Bracket . . . At Right Angles (13). pp. 89-90. ISSN 2582-1873

Titus, Sneha (2022) From the Editor’s Desk . . . At Right Angles (13). ISSN 2582-1873

Titus, Sneha (2012) How about a math portfolio? At Right Angles, 1 (1). pp. 43-47.

Titus, Sneha (2018) Mini review- numero friendly board games. At Right Angles, 7 (2). pp. 143-145. ISSN 2582-1873

Titus, Sneha (2012) NRICH. At Right Angles, 1 (2). ISSN 2582-1873

Titus, Sneha (2017) Problems for the middle school. At Right Angles, 6 (2). pp. 86-91. ISSN 2582-1873

Titus, Sneha (2019) Quilting : explorations by a mathematics teacher. At Right Angles. pp. 61-65. ISSN 2582-1873

Titus, Sneha (2012) Review of a YouTube clip. At Right Angles, 1 (1). p. 64. ISSN 2582-1873

Titus, Sneha (2014) Teacher's diary on classroom assessment - III. At Right Angles, 3 (2). pp. 34-41.

Titus, Sneha (2018) The gentle man who taught infinity. At Right Angles, 7 (2). pp. 140-142. ISSN 2582-1873

Titus, Sneha (2013) The path to mastery-teacher: leader, supporter, enabler. At Right Angles, 2 (2). pp. 39-42. ISSN 2582-1873

Titus, Sneha and Athmaraman, R (2017) Problems for the middle school. At Right Angles, 6 (1). pp. 70-72.

Titus, Sneha and Athmaraman, R. (2017) Problems for the middle school. At Right Angles, 6 (3). pp. 99-103.

Titus, Sneha and Ghosh, Jonaki B. (2013) In a dynamic geometry environment: Exploring problems in geometry. At Right Angles, 2 (1). pp. 44-48.

Titus, Sneha and R., Athmaraman (2016) Problems for the middle school. At Right Angles, 5 (3). pp. 77-81. ISSN 2582-1873

Titus, Sneha and Sircar, Swati (2017) DADS rule! At Right Angles, 6 (1). pp. 33-38.

Titus, Sneha and Sircar, Swati (2015) Low floor high ceiling tasks - getting into shape, Tangram time. At Right Angles, 4 (3). pp. 35-41. ISSN 2582-1873

Tonapi, Anushka (2022) Factorising non-monic quadratic equations. At Right Angles (12). pp. 70-73. ISSN 2582-1873

Tonapi, Anushka (2024) Introduction to algorithms. At Right Angles (20). pp. 14-19. ISSN 2582-1873

Tonapi, Anushka (2023) Zeller’s Congruence. At Right Angles. pp. 68-71. ISSN 2582-1873

Umar, M. (2020) The Height of a Tree. At Right Angles (8). pp. 29-34. ISSN 2582-1873

Uy, Brad and Metz, James (2024) Why 6? connecting tetrahedral numbers to a tetrahedron. At Right Angles. pp. 28-31. ISSN 2582-1873

V.G., Tikekar (2015) Morley´s Miracle – Part III. At Right Angles, 4 (2). pp. 5-8.

Vaidya, Arun (2017) The breaking of the IM CODE. At Right Angles, 6 (2). pp. 5-11. ISSN 2582-1873

Venkataraman, Geetha (2014) Of monsters and moonshine. At Right Angles, 3 (1). pp. 73-77. ISSN 2582-1873

Venkataraman, Geetha (2016) Through the symmetry lens. At Right Angles, 5 (2). pp. 11-16.

Venkataraman, Geetha and Khemani, Shreya (2012) Close encounters of the ‘Math ED’ kind. At Right Angles, 1 (2). pp. 31-36. ISSN 2582-1873

Venkataraman, Geetha (2016) Through the symmetry lens, part 1 : planar symmetry and frieze pattern. At Right Angles, 5 (1). pp. 5-14.

Venkatasubban, Rajatadri (2019) An unusual proof of the centroid theorem. At Right Angles (5). pp. 34-36. ISSN 2582-1873

Venkatesh, Arundhati (2021) Review : Blockhead : the life of Fibonacci. At Right Angles (10). pp. 76-79. ISSN 2582-1873

Verma, Jitendra (2024) Divisibility Rules for 7. At Right Angles (18). pp. 50-54. ISSN 2582-1873

Verma, Manisha and Diwakar, Sandeep (2023) Developing an Understanding of Probability… Experience from the classroom. At Right Angles. pp. 45-50. ISSN 2582-1873

Verma, Pranav (2021) Infinite kepler triangles. At Right Angles (10). pp. 70-72. ISSN 2582-1873

Vikranth, Vishak (2020) Product numbers. At Right Angles (6). pp. 40-41. ISSN 2582-1873

Villiers, Michael De (2018) A cyclic Kepler quadrilateral & the golden ratio. At Right Angles, 7 (1). pp. 91-94.

Villiers, Michael De and Humenberger, Hans (2021) Ghosts of a problem past. At Right Angles (9). pp. 105-111. ISSN 2582-1873

Villiers, Michael De and Metz, James and Uy, Brad (2022) Intersecting Circles Investigation. At Right Angles (14). pp. 67-73. ISSN 2582-1873

Villiesrs, Michael De (2017) From a golden Rectangle to golden Quadrilaterals And beyond. At Right Angles, 6 (1). pp. 64-69.

Virmani, Amitabh (2022) Making the Great Icosahedron. At Right Angles (13). pp. 7-11. ISSN 2582-1873

Viswanath, Sankaran (2017) Predicting the future. At Right Angles, 6 (2). pp. 15-21. ISSN 2582-1873

Vyavahare, S. and Jacob, W. (2020) Cryptarithms. At Right Angles (8). pp. 22-24. ISSN 2582-1873

Vyawahare, Anant (2016) The digital root. At Right Angles, 5 (2). pp. 42-44.

Warhadpande, M. (2021) Folk Method Analysis (Sixth Method – a local device). At Right Angles (9). pp. 51-54. ISSN 2582-1873

Warhadpande, Mahit (2022) The Minimal Instruments of Geometry – II. At Right Angles (13). pp. 12-16. ISSN 2582-1873

Warhadpande, Mahit (2022) The minimal instruments of geometry – I. At Right Angles (12). pp. 7-12. ISSN 2582-1873

Warhadpande, Mahit and Ghosh, Abhroneel (2023) Real world implications of a KVPY problem. At Right Angles. pp. 74-85. ISSN 2582-1873

Yadav, M. R. and Kumar, Naresh (2023) Divisibility by any ClassRoom Odd Number that is not a Multiple of 5. At Right Angles. pp. 35-38. ISSN 2582-1873

Yadav, Naveenkumar (2017) On scalene triple. At Right Angles, 6 (3). pp. 46-49.

Zahid, Shekh Mohammed (2025) Crafting questions for diverse learning goals. At Right Angles (21). pp. 21-25. ISSN 2582-1873

Zaman, Mokhtar (2024) My pedagogical experience with arrow cards. At Right Angles (20). pp. 52-54. ISSN 2582-1873

shirali, Padmapriya (2016) Teaching area and perimeter. At Right Angles, 5 (2). pp. 1-16.

अनुष्का राव, फिट्ज़हर्बट (2018) अनुमान की एक कक्षा. At Right Angles. ISSN 2582-1873

अज़ीम प्रेमजी यूनिवर्सिटी, मैथ स्पेस (2020) समीक्षा : एरो कार्ड. At Right Angles. ISSN 2582-1873

अज़ीम प्रेमजी यूनिवर्सिटी, मैथ स्पेस (2020) V का जोड़. At Right Angles. ISSN 2582-1873

आत्मारमण, आर. (2012) खुले प्रश्न. At Right Angles, 1 (2). ISSN 2582-1873

आर., हरगोपाल (2020) हारा के त्रिभुज और त्रिक. At Right Angles. ISSN 2582-1873

उमर, मोहम्मद (2020) एक पेड़ की ऊँचाई. At Right Angles. ISSN 2582-1873

एस. एम., अनुपमा (2020) BODMAS : तिल का ताड़? At Right Angles. ISSN 2582-1873

कम्युनिटी मैथमेटिक्स सेंटर, कोमैक (2013) जॉर्ज पोल्या : उन्हीं के शब्दों में. At Right Angles, 1 (1). ISSN 2582-1873

कम्युनिटी मैथमेटिक्स सेंटर, कोमैक (2017) अगली संख्या क्या है ? At Right Angles. ISSN 2582-1873

कम्युनिटी मैथमेटिक्स सेंटर, कोमैक (2015) शब्दों के बिना प्रमाण. At Right Angles. ISSN 2582-1873

कम्युनिटी मैथमेटिक्स सेंटर, कोमैक (2020) 7 से विभाज्यता की 'चिका' जाँच. At Right Angles. ISSN 2582-1873

कम्युनिटी मैथमेटिक्स सेंटर, कोमैक (2016) 8 से विभाज्यता जाँचने के लिए एक नया नियम. At Right Angles. ISSN 2582-1873

कुमार, प्रभात (2016) जो बोलर की पुस्तक मैथमेटिकल माइंडसैटस की समीक्षा. At Right Angles. ISSN 2582-1873

खान, रुबीना and झारबदे, महेश (2022) जीवन में गणित. Paathshaala Bhitar aur Bahar, 4 (11). pp. 7-13. ISSN 2582-4836

गाँधी, हनीत (2014) किसी तल को दोहराते पैटर्न से ढँकना : भाग 1. At Right Angles. ISSN 2582-1873

गाँधी, हनीत (2014) किसी तल को दोहराते पैटर्न से ढँकना : भाग 2. At Right Angles. ISSN 2582-1873

गिरिधर, एस. (2019) बाज़ार और गणित. At Right Angles. ISSN 2582-1873

गुप्ता, संध्या (2018) ज्यामितिय आकृतियाँ बनाना : डोरी का खेल. At Right Angles. ISSN 2582-1873

गुलाटी, संगीता (2018) मोबाइल पज़ल : चरों और समीकरणों की समझ बनाना. At Right Angles. ISSN 2582-1873

गेसोटा, रुपेश (2018) असमान भिन्नों को जोड़ने की समझ बनाना. At Right Angles. ISSN 2582-1873

गोमती, आर. (2019) टाइल्स से खेलना : टेसिलेशन की शुरुआत. At Right Angles. ISSN 2582-1873

गोस्वामी, ऋचा (2018) भिन्नों के बारे में ग़लतफ़हमियाँ. At Right Angles. ISSN 2582-1873

गौर, शिव (2013) एक द्वादशफलक का ढाँचा बनाना. At Right Angles, 1 (2). ISSN 2582-1873

गौड़, शिव (2014) टर्न्ड-अप फ़ोल्ड्स की मैपिंग करना और मोड़ना. At Right Angles, 3 (3). ISSN 2582-1873

घोष, जोनाकी (2020) गतिशील ज्‍यामितिय सॉफ्टवेयर. At Right Angles. ISSN 2582-1873

चन्दन, देव विनोद and पाटिल, अधिराज (2017) हैप्पी संख्याएँ (प्रसन्न संख्याएँ). At Right Angles. ISSN 2582-1873

जगदीशन, शशिधर (2017) गणित शिक्षण में असहनीय बोझिलता से निपटना बीजगणित और केलकुलस के लिए कार्टून गाइड : लैरी गोनिक. At Right Angles. ISSN 2582-1873

जगदीशन, शशिधर (2013) एक छोटे-से विद्यालय के नोट्स. At Right Angles, 2 (1). ISSN 2582-1873

टाइटस, स्नेहा (2019) क्विल्टिंग : एक गणित-शिक्षक की पड़ताल. At Right Angles. ISSN 2582-1873

टाइटस, स्नेहा and श्रीदेवी, सिन्धु (2014) पोर्टफोलियो मूल्यांकन. At Right Angles, 3 (3). ISSN 2582-1873

टाइटस, स्नेहा and सरकार, स्वाती (2015) आकृतियों को जानना. At Right Angles, 4 (3). ISSN 2582-1873

टिकेकर, राहुल (2018) रामानुजन : क्या होता, अगर... At Right Angles. ISSN 2582-1873

डे, पृथ्वीजीत (2012) मिठाई वाले की तरक़ीब. At Right Angles. ISSN 2582-1873

दाश, अरधेन्दू शेखर (2020) भिन्न शिक्षण का तरीका : ग़लतफ़हमियाँ और अन्य बातें. At Right Angles. ISSN 2582-1873

दाश, अरधेन्दू शेखर (2020) 90⁰ के कोण की रचना की कार्यविधि की प्रमाणिकता. At Right Angles. ISSN 2582-1873

दास, अर्धेन्दु शेखर (2021) गणित की कक्षा में मौखिक बातचीत. At Right Angles. ISSN 2582-1873

दीवान, हृदय कान्त (2022) गणित क्यों और कैसे. Paathshaala Bhitar aur Bahar, 4 (11). pp. 71-81. ISSN 2582-4836

द्विवेदी, रजनी (2022) गणित के क्यों डरना. Paathshaala Bhitar aur Bahar, 4 (11). pp. 82-90. ISSN 2582-4836

धस्माना, प्रीति (2021) सममिति का उपयोग करके क्षेत्रफल का पता लगाना. At Right Angles. ISSN 2582-1873

नरसिम्हन, एम. एस. (2020) द मैथमेटिक्स ऑफ़ इंडिया - पी. पी. दिवाकरण. At Right Angles. ISSN 2582-1873

नाइक, अरुण (2012) आगमन विधि की ख़ामियाँ : उदाहरण से पढ़ाने के ख़तरे. At Right Angles, 1 (2). ISSN 2582-1873

नायर, विनय (2019) एक वर्ग को बराबर हिस्सों में बाँटना. At Right Angles. ISSN 2582-1873

नायर, विनय (2020) त्रिभुजों से पड़ताल. At Right Angles. ISSN 2582-1873

नायर, विनय (2019) एक गणितीय तीर्थयात्रा : रामानुजन यात्रा. At Right Angles. ISSN 2582-1873

पटोदी, अंकित (2021) विभाज्यता के नियमों की व्याख्या. At Right Angles. ISSN 2582-1873

प्रसाद, अशोक (2020) महत्तम समापवर्तक पर बातचीत. At Right Angles. ISSN 2582-1873

प्रसाद, अशोक (2022) सन्दर्भों में निहित गणितीय संभावनाएं. Paathshaala Bhitar aur Bahar, 4 (11). pp. 20-27. ISSN 2582-4836

बनर्जी, राखी (2020) आयत का क्षेत्रफल = लम्बाई X चौड़ाई. At Right Angles. ISSN 2582-1873

मधुसूदनन, सुंदररमन (2016) त्रिभुजों की गिनती. At Right Angles, 5 (3). ISSN 2582-1873

मालवीय, मुकेश (2022) गणित के भटकाव, एक वजह, भाषा का अटकाव. Paathshaala Bhitar aur Bahar, 4 (11). pp. 65-70. ISSN 2582-4836

मॉन्टेरो, विवेक (2019) डब्ल्यू. डब्ल्यू. सॉयर : गणित के सार्वभौमिक शिक्षक. At Right Angles. ISSN 2582-1873

मौली, हरण (2021) V का जोड़ (भूलसुधार). At Right Angles. ISSN 2582-1873

यादव, गुलशन (2022) कोविड महामारी के बाद गणित शिक्षण की शुरूआती प्रक्रिया. Paathshaala Bhitar aur Bahar, 4 (11). pp. 57-64. ISSN 2582-4836

रघुनाथ, सबिता and भंसाली, स्नेहा (2019) पाँचवीं कक्षा में π का प्रवेश. At Right Angles. ISSN 2582-1873

राजुरकर, अंशुल (2022) कौन बड़ा है और कौन छोटा: भिन्नात्मक संख्याओं की तुलना. Paathshaala Bhitar aur Bahar, 4 (11). pp. 14-19. ISSN 2582-4836

रामचंद्रन, ए. (2012) चार-भुजाओं की वंशावली. At Right Angles. ISSN 2582-1873

रामचन्द्रन, ए. (2020) माध्यमिक विद्यालयों की समस्याओं को विस्तृत खोज की आवश्यकता है. At Right Angles. ISSN 2582-1873

रामचन्द्रन, ए. (2014) दिलचस्प गणित की ओर ले जाती एक पहेली. At Right Angles. ISSN 2582-1873

रामचन्द्रन, ए. (2015) चतुर्भुज के कोण समद्विभाजक. At Right Angles, 4 (1). ISSN 2582-1873

रोस्सी, and शिखा, (2014) पहेलियों के माध्यम से गणित सीखें. At Right Angles. ISSN 2582-1873

लक्ष्मी, आर. रोहिणी (2016) किसी संख्या के अभाज्य गुणनखण्डों की पुनरावृत्ति. At Right Angles. ISSN 2582-1873

विक्रान्त, विशाक (2020) गुणनफल संख्याएँ. At Right Angles. ISSN 2582-1873

शाह, तनुज (2013) गिनती के प्रति आकर्षण. At Right Angles. ISSN 2582-1873

शिराली, पद्मप्रिया (2016) आँकड़ों के प्रबन्‍धन का शिक्षण. At Right Angles, 5 (3). pp. 1-16. ISSN 2582-1873

शिराली, पद्मप्रिया (2017) बड़ी संख्‍याओं की रहस्‍यमयी दुनिया (Pullout-Aug). At Right Angles, 6 (2). pp. 1-12. ISSN 2582-1873

शिराली, पद्मप्रिया (2012) भिन्न समझना : पेपर किट की मदद से (Pullout-Dec). At Right Angles, 1 (2). ISSN 2582-1873

शिराली, पद्मप्रिया (2016) क्षेत्रफल तथा परिमाप (Pullout-Jul). At Right Angles, 5 (2). pp. 1-16. ISSN 2582-1873

शिराली, पद्मप्रिया (2013) संख्या संक्रियाएँ : जोड़ (Pullout-Jul). At Right Angles, 2 (2). ISSN 2582-1873

शिराली, पद्मप्रिया (2014) पढ़ाना : भागभाग (Pullout-Jul). At Right Angles, 3 (2). ISSN 2582-1873

शिराली, पद्मप्रिया (2015) शिक्षण : मापन का (Pullout-Jul). At Right Angles, 4 (2). ISSN 2582-1873

शिराली, पद्मप्रिया (2014) भिन्न समझना : पेपर फोल्डिंग की मदद से (Pullout-Jun). At Right Angles, 1 (1). ISSN 2582-1873

शिराली, पद्मप्रिया (2017) समय का शिक्षण (Pullout-Mar). At Right Angles, 6 (1). pp. 1-16. ISSN 2582-1873

शिराली, पद्मप्रिया (2016) इबारती सवालों का शिक्षण (Pullout-Mar). At Right Angles, 5 (1). pp. 1-20. ISSN 2582-1873

शिराली, पद्मप्रिया (2014) पढ़ाना : गुणा (Pullout-Mar). At Right Angles, 3 (1). ISSN 2582-1873

शिराली, पद्मप्रिया (2015) शिक्षण : ज्यामिति भाग-दो (Pullout-Mar). At Right Angles, 4 (1). ISSN 2582-1873

शिराली, पद्मप्रिया (2014) पढ़ाना : घटाना (Pullout-Nov). At Right Angles, 2 (3). ISSN 2582-1873

शिराली, पद्मप्रिया (2014) शिक्षण : ज्यामिति भाग-एक (Pullout-Nov). At Right Angles, 3 (3). ISSN 2582-1873

शिराली, पद्मप्रिया (2015) शिक्षण : सोचने-विचारने के कौशलों का (Pullout-Nov). At Right Angles, 4 (3). ISSN 2582-1873

शिराली, पद्मप्रिया (2016) शिक्षण : आँकड़ों के प्रबन्धन का (Pullout-Nov). At Right Angles, 5 (3). ISSN 2582-1873

शिराली, पद्मप्रिया (2014) स्थानीय मान : पेपर किट की मदद से (pullout-Mar). At Right Angles, 2 (1). ISSN 2582-1873

शिराली, शैलेष (2017) इसे सिद्ध कैसे करें ? At Right Angles, 6 (3). ISSN 2582-1873

शेख, मजीद (2015) 2 की घात से विभाज्यता का परीक्षण. At Right Angles. ISSN 2582-1873

श्रीवास्तव, सुधीर (2022) मातृभाषा और गणित शिक्षण. Paathshaala Bhitar aur Bahar (12). pp. 74-84. ISSN 2582-4836

सक्सेना, तान्या (2022) प्राथमिक स्तर से गणितीय सोच का विकास. Paathshaala Bhitar aur Bahar, 4 (11). pp. 34-41. ISSN 2582-4836

सरकार, स्वाती (2020) समय के साथ बदलती परिभाषाएँ. At Right Angles. ISSN 2582-1873

सरकार, स्वाती (2019) डॉट शीट्स के साथ मज़ा. At Right Angles. ISSN 2582-1873

सरकार, स्वाती (2018) पॉलिओमीनो - एक बार फिर से. At Right Angles. ISSN 2582-1873

सरकार, स्वाती (2018) अजीब संख्याएँ. At Right Angles. ISSN 2582-1873

सरकार, स्वाती (2021) समीक्षा : गणितमाला. At Right Angles. ISSN 2582-1873

सरकार, स्वाती (2018) पूर्ण संख्या और भिन्नों के साथ जोड़ के गुणधर्मोँ की खोज. At Right Angles. ISSN 2582-1873

सरकार, स्वाती (2021) सम़ीक्षा : गणितमाला. At Right Angles. pp. 1-4. ISSN 2582-1873

सरकार, स्वाती and टाइटस, स्नेहा (2015) पेंटोमिनोस के साथ खोजबीन. At Right Angles, 4 (1). ISSN 2582-1873

सरकार, स्वाती and टाइटस, स्नेहा (2017) क्रमागत प्राकृत संख्याओं के योग. At Right Angles. ISSN 2582-1873

सरकार, स्वाती and टाइटस, स्नेहा (2018) चतुर चतुर्भुज. At Right Angles. ISSN 2582-1873

साहा, सुहास (2017) ताश के पत्तों के करतब से त्रि-आधार [Ternary Base]. At Right Angles. ISSN 2582-1873

सिंह, अंकित (2022) बच्चे, रेखा और कोण. Paathshaala Bhitar aur Bahar, 4 (11). pp. 53-56. ISSN 2582-4836

सुब्रमण्यन, के. (2018) स्कूली बीजगणित में 'संयुग्मन' की त्रुटि. At Right Angles. ISSN 2582-1873

सुब्रमण्यम, के. (2016) जिल एडलर : दक्षिण अफ़्रीका की गणित शिक्षा शोधकर्ता. At Right Angles. ISSN 2582-1873

सूरी, बी. (2020) उबाऊ रास्ते, जल द्वार और यूलर का फॉर्मूला. At Right Angles. ISSN 2582-1873