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Learning by Doing

Objective: Reinforce the concept of simple equation by forming the
equations using paper-cutting method and solve them.
Materials Required: Some squared shape cardboard sheets, some red
and green colour bindis.
Procedure:
• Work in pairs.
• Take some squared shape cardboard sheets, divide a few sheets into two equal triangles,
a few squared sheets into three equal rectangular strips and a few sheets into four equal
equal triangles.
• Consider a squared sheet is represented by x. So that,

x x x
x
2 3 4

• Also, Take some red and green colour bindis. Each red colour bindi will represent positive
integer (+1) and each green colour bindi will represent negative integer (–1).

• Let us arrange them to make simple equations. As follows

+ =

+ + =

– =

• Write the simple equations for each of the above arrangements and solve them.

• Also, using the above cardboard sheets make more equations and solve them.

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