Introduction
Chapter Name : Number Systems |
Sub Topic Code : 104_09_01_01_01 |
Topic Name : Introduction |
|
Sub Topic Name : Introduction |
|
Introduction
Number systems.
Pre-Requisites:
Basic knowledge on numbers
Activity:
Take 2 integers and identify rational numbers between them. Now take any 2 rational numbers and find another rational number between them.
Real Life Question:
6 friends ordered a pizza. How much part does each one get? What type of a number it is? Is it an integer?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Natural Numbers Whole Numbers Integers Rational Numbers Irrational numbers Number Line | The set {1,2,3,4….} is called as natural numbers The set {0,1,2,3,4….} is called as whole numbers The set {….-3,-2,-1,0,1,2,3,4….} is called as Integers The numbers which can be written in p/q form, q? 0, p, q are integers. The numbers which are not rational numbers. Pictorial representation of numbers on a straight line. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Number line | Take a number line and show natural numbers, whole numbers, rational numbers, integers. |
Real life uses :
Numbers used in calculating temperature of human body.
Practical examples around us
| Examples | Explainations |
|---|---|
| What type of numbers we indicate in calculating the weight of a person with one decimal precision? | It is a rational number. if the weight is a.b, it can be written as ab/10 which can be written as p/q form where p and q are coprimes and q ?0. |
What you learn in Theory:
Types of numbers
What you learn in Practice:
Types of numbers and usage.