# Difference

## Investigations

An investigation can have a seemingly simple looking problem as its starting point but can lead to lines of inquiry which provide rich insight into a particular area of mathematics. It is important to let children develop their own lines of inquiry, and to have the experience of encountering ‘dead ends.’ In particular, one must not lead their inquiry but provide broad pointers for developing further lines of inquiry.

## Beyond Novella...memoirs of change

Written by Deepika Nayyar, this is a book of stories of change in the desert of Thar in Rajasthan. It documents the stories of eleven change-makers who have been bringing about change in their respective communities. It reveals the outcomes of Balika Shivirs, a revolutionary educational movement in western Rajasthan between 1995-2010.

## Doing Things Differently To Do Them Better

What sets this school apart? Read on to find out!

## Visual Algebra 4 - Square number theorem

Share with your students this simple video that demonstrates how (a+b)² - 4ab = (a - b)².

## Visual Algebra 3 - Sum of the squares of a sum and a difference

Here is a video that can be used to show students how (a+b)²+(a-b)² = 2(a²+b²).

## Visual Algebra 2 - Difference of the squares of a sum and a difference

Watch this video of 25 seconds to see how (a + b)2 - (a - b)= 4ab.

## Visual Algebra 1 - difference of squares

This video demonstrates how a- b= (a + b)(a - b)   in less than a minute.

## All it takes is one

Are teachers born and not made? Can someone who simply drifted into the profession become a good teacher?
Kusum Negi shows that with passion, anything is possible...

## Living and Non-living Things

This worksheet is created to help students develop sensitivity towards living and non-living things and animals.

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