Exploration of Recurring Decimals

Shirali, p (2013) Exploration of Recurring Decimals. At Right Angles, 2 (3). pp. 1-4.

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Abstract

We first expose children to the topic of converting fractions to decimal numbers in class 5 or 6. At that point children notice that some fractions terminate and some do not, and they come across terms like terminating decimals and recurring decimals. They are also shown the usage of the bar or dot notation. Generally most textbooks do not proceed beyond this point. Later (class 8 or 9) they are taught how to rationalize numbers. The activity I describe here is one which I have tried with class 8 children. It proved to be an interesting investigation into the patterns in recurring decimals leading to generalization and looking at the reverse process initially through a trial and error approach followed by arriving at the procedure for rationalization.

Item Type: Articles in APF Magazines
Uncontrolled Keywords: recurring, terminating, decimals, fractions, pattern, repetend
Subjects: Natural Sciences
Natural Sciences > Mathematics
Divisions: Azim Premji University > University publications > At Right Angles
Depositing User: Mr. Sachin Tirlapur
Date Deposited: 29 Oct 2018 16:58
Last Modified: 29 Oct 2018 16:58
Related URLs:
URI: http://publications.azimpremjifoundation.org/id/eprint/1694
Publisher URL: http://apfstatic.s3.ap-south-1.amazonaws.com/s3fs-...

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