IX B Maths,1. Number system

 

05/04/21

Ch.1. Number System

*Topic taught: Rational Numbers*

Screening Questions:
1.What are Natural Numbers, Whole numbers,Integers, Rational Numbers.
2.Draw a Number line and mark the following:
-4,5,0.
3.Draw a Venn diagram representing the numbers from Q1.

Example 1

Exercise 1.1

Math Today's HW

Complete Ex1.1

6/4/21

Topics taught: Irrational numbers

Decimal Expansion of rational numbers

Expressing decimal expansion in p/q form.

Homework: Ex 1.3 Q1,2,3,4 and 9

7/4/21

Topics taught: 

Decimal Expansion of rational numbers.

Inserting irrational numbers between two rational numbers.

Visualizing rational numbers on numberline

Q3 iii)

HW: Ex 1.3 ,Q5&7.

Ex.1.4 

8/4/21

Please recheck your answers of Ex1.4

Topics taught:

Representation of Irrational Numbers on Number line.

HW: Exercise 1.2

9/4/21

Topics taught: 

Operation on real numbers.

Classwork:

Points to be written in book:

(i) The sum or difference of a rational number and an irrational number is irrational.

(ii) The product or quotient of a non-zero rational number with an irrational number is irrational.

(iii) If we add, subtract, multiply or divide two irrationals, the result may be rational or irrational.

II Method

HW: Exercise 1.5, Q1&2

10/4/21

Topic taught:

Rationalising the Denominator

Extra sums:

Laws of Exponents for Real numbers

HW: Exercise 1.5 Q5

Exercise 1.6 Q1 & 2(try)

12/4/21

Laws of Exponents for Real numbers

HW: Q4, ii & iii

HW: Complete exercise 1.6 Q2&3

Please check your answers from below

13/4/21

Practice Sums :

Topics Taught:

Representing irrational number on number line.

General Steps :

 

Homework: Complete this extra practice sums in NB

15/4/21

Practice Sheet Discussion

QII . 4

6. 

17.

QIII.

HW: Complete Practice sheet

16/4/21

Discussion on Case study Questions

HW: Complete the Practice sheet and upload on between us by 19/4/21