Finding The Square Of A Number
Chapter Name : Squares And Square Roots |
Sub Topic Code : 104_08_06_04_02 |
Topic Name : Finding The Square Of A Number |
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Sub Topic Name : Other Patterns In Squares |
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Introduction
How to find the square of a number?
Pre-Requisites:
Basic knowledge about multiplication, square numbers and square roots
Activity:
A big number is split into small numbers and then evaluated using arithmetic operations. The results are added using the abacus. This result would equal the value of the square of big number.
Real Life Question:
How are the dimensions of area for a swimming pool of some volume derived?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Square number | A number that is the product of a number with itself. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Abacus | Use abacus to represent the numbers. Note down the no. of beads on the top in the unit place for the number. Represent its square. Note down the no. of beads on the top in the unit place. Represent the split numbers and their squares and repeat the procedure. |
Real life uses :
Construction, business transactions, computer games, animations
Practical examples around us
| Examples | Explainations |
|---|---|
| Overhead tanks Computer games | The area of the tank is measured by dividing the capacity of tank with its proposed height. We use square roots to determine sides or radius The squares and square roots are used in construction of computer games during interactions of characters with objects |
What you learn in Theory:
Square of a number is the product of itself. A number which has integers as its square roots is called a perfect square. For big numbers, the numbers are split into small numbers and evaluated using arithmetic operations.
What you learn in Practice:
A big number is split into two small numbers and are expanded by multiplication. Now the result numbers are added to each other and the result is same as the square of that big number.