Based on CHAPTERs 7. Cubes and cube roots 16. Playing with numbers 9.Algebraic Expression 14.Factorization 2.Linear Equation in one Variable
Activity – Cube and Cube roots
Objective :
To find the cube of a number by paper folding.
Materials Required:
A chart paper and a pair of scissors.
Procedure :
Any rectangular piece of paper represents the base. The number of times the paper is folded represents the exponent of the base.
2. To find the cube of 2, take a chart paper and fold it into two equal parts along the length and then along width. Again, fold it into two parts along the length.
3. You have folded the chart paper three times that represents 2³. Unfold it and cut along the folds. You will get 8 pieces i.e., 2³.
4. To find the cube of 3, take another chart paper and fold it into three equal parts as given in the figure.
5. Now, fold along the width, dividing it further into three equal parts.
6. This time fold it along the length, dividing it further into three equal parts.
7. Now unfold the rectangular sheet and cut along the folds, you will get 27 equal pieces, i.e., 3³
In this way you can find the cube of any number by folding a paper.
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