MATHS ACTIVITIES CLASS 7 Based on CHAPTERs
9.Rational Numbers
13.Exponents and Powers
12.Algebraic Expression
4.Simple Equations
8. Comparing Quantities
ACTIVITY –Exponents and Powers
Objective:
To understand the exponential growth of the triangles by activity method.
Materials Required:
Coloured glazed papers, a pair of scissors, pencil, white chart sheet.
Procedure:
1. Cut out a square from a coloured glazed paper.
2. Draw the diagonal. Fold it to get two triangles and paste it on a white chart sheet as shown in Fig.
3. Now, make 2 and 3 folds and count the number of triangles formed in each case.
4. Also make 4 and 5 folds. Then note down the observations in a table as shown below:
We see that the number of triangles increase exponentially corresponding to the number of folds.
