Classroom Resources

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Area of Rectangle = Length × Breadth: Conversations with a 9 year oldArticle | By At Right Angles |  Aug 19, 2020 Mathematics | 1 Like

Children are taught many kinds of measures in the primary grades, like length, weight, volume, money, time and finally area and perimeter (which is nothing but measurement of length).

Working Together Article | By At Right Angles |  Aug 16, 2020 Mathematics | 0 Likes

“Manveen can paint a room in 3 hours and Allen can paint it in 6 hours. How much time will it take them to paint the room if they work together?”

What Can We Construct? – Part 1 Article | By At Right Angles |  Aug 16, 2020 Mathematics | 0 Likes

The geometers of ancient Greece invented a peculiar game for themselves, a game called Construction, whose objective is to draw various geometric figu

The Mathematical Artist of Play: A TRIBUTE TO JOHN HORTON CONWAYArticle | By At Right Angles |  Aug 17, 2020 Mathematics | 0 Likes

A Maverick Mathematician

The Generalised Pythagoras Theorem – Another ProofArticle | By At Right Angles |  Aug 21, 2020 Mathematics | 0 Likes

In this short note, we present a proof of the generalised Pythagoras theorem. We use the ‘ordinary’ Pythagoras theorem for the proof.

Theorem. In any triangle ABC, we have:

Magic Squares Using Semi-PrimesArticle | By At Right Angles |  Aug 19, 2020 Mathematics | 0 Likes

Wikipedia [1] defines a semi-prime as a natural number that is the product of two prime numbers.

Preparation for Understanding - Helping Children DiscoverE-Book | By Editor English |  Aug 21, 2020 Mathematics, Science & Technology | 0 Likes
This book is particularly a preparation for understanding Science. Science is built from curiosity, experience, analysis and finally the expression of a discovery.


Classroom Resources