Page 116 - Maths Skills - 7

114 Maths

Activity

Objective: To find the value of 2 , 2 , 2 or 3 , 3 , 3 experimentally
0
1
2
0
1
2
Pre-Requisite Knowledge: Multiplication of numbers
Materials Required: Coloured papers, scale, a pencil, an eraser, a pair of scissors and fevicol
Procedure: 1. Cut a rectangle on a coloured paper. For base 2, two parts are folded and for base 3 three parts
are folded.

2. A rectangle with no fold represents 2 or 3 , i.e., 1 as shown in Fig. 1.
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3. Now fold the above paper along the width into two parts creating one fold which shows that 2
1
equals 2 as shown in Fig. 2.

Fig. 1 Fig. 2 Fig. 3 Fig. 4

4. Again fold the paper once more, i.e., the number of folds are 2 and four parts are created.
Therefore, 2 = 4 as shown in Fig. 3.
2
5. Record your observations and see how exponents are useful in creating geometrical patterns.

6. Similar steps can be repeated when the number at base is 3, 4, or 5.
(Draw another observation table, if required).

Observations: Base = ______________________

Value of Exponent
(Number of Folds) 0

Result 2 = 1
0