Paper cutting and pasting demonstration for the angle sum property of a triangle
An icosihenagon is a 21 sided polygon. Learn to make it using thread and nails on a wooden board.
A paper cutting pasting activity instructions for visualising the area of a circle formula
A student of mine playing the game Tower of Hanoi
This activity will help you in visualising the formula for area of a parallelogram by paper cutting and pasting
(a+b)^2 - (a-b)^2 = 4ab