Rational Numbers
Chapter Name : Rational Numbers |
Sub Topic Code : 104_08_01_01_01 |
Topic Name : Rational Numbers |
|
Sub Topic Name : Introduction |
|
Introduction
Everyday we come across terms like half, quarter etc. These are nothing but fractions. When fractions are extended on both the sides of zero, we get a bigger set of numbers called, RATIONALS
Pre-Requisites:
Basic knowledge about classification of numbers, whole numbers, integers
Activity:
Make a number line and locate the fractions we get by dividing various sets of integers on the line.
Real Life Question:
I have half of a pie. I eat quarter of that. How much will my naughty brother get?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Expression form | p/q, where 'p' and 'q' are integers |
| Rational number | Fraction of two integers with denominator not equal to 0 |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Number lines | To locate the place of a rational number on a number line |
Real life uses :
Slicing a pizza, dividing money, playing in the elevator, counting time in races, volume of ice cream left in the cone, Speed calculation
Practical examples around us
| Examples | Explainations |
|---|---|
| Clock | The minutes are fractions of hour, seconds are fractions of minutes |
What you learn in Theory:
An Intro into Rational numbers
What you learn in Practice:
Position of rational numbers on a number line and importance in calculations.