Class 08 Introduction to Graphs - 1 Double bar graphs

 

Introduction to Graphs

Activity-1 : Double Bar Graphs

DATE:

 

AIM / Objective:

To draw double bar graphs

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of bar graphs

 

PROCEDURE:

 

Write down all the marks of a particular test of each subject in unit test 1 and unit test 2.

Represent it in form of a double bar graph.

Then analyse your performance in all subjects in unit test 1 and unit test 2.

 

LEARNING ASSESSMENT:

 

Find out the subjects in which subjects you performed better in unit test 1 and in which subjects you performed better in unit test 2.

 

SOLUTION:

Class 08 Factorization-2 : Factorisation

 

Factorization

 

Activity-2 : Factorization

DATE:

 

AIM / Objective:

To divide the given monomial and binomial

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of factorization

 

PROCEDURE:

Find the values

 

LEARNING ASSESSMENT:

 

Write

(a) A monomial which when divided by 3x^2  gives 9xy.

(b) A binomial which when divided by 3x^2  gives 9xy.

(c) A binomial which when divided by 3x^2  gives 9xy.

(d) A binomial which when divided by 3x+2 gives 1.

 

 

SOLUTION:

Class 08 Factorization -1 : Factorisation

 

Factorization

 

Activity-1 : Factorisation

DATE:

 

AIM / Objective:

To factorise using the identity

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of  factorization

 

PROCEDURE:

 

You know an identity is true for all values of the variable

for e.g.

(a+b)^2 = a^2 + b^2 +  2ab

 (a-b)^2 = a^2 + b^2    - 2ab

(a+b) (a-b) = a^2   - b^2   

 

LEARNING ASSESSMENT:

 

Now write 5 algebraic expression in the form of the identity and factorise them using the identity.

 

 SOLUTION:

Class 08 Direct and inverse proportions-2 : Direct Variation and Inverse Variation

 

Direct and inverse proportions

Activity-2 : Direct Variation and Inverse Variation

DATE:

AIM / Objective:

To find proportion

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of Direct proportions and inverse proportions

 

PROCEDURE:

 

For three days note down the distance covered by your

father/mother's vehicle and note down the fuel consumed

and distance covered.

 

 

LEARNING ASSESSMENT:

 

(i) Find out which kind of variation it shows. (Direct or

Inverse)

(ii) Name the fuel used in the vehicle

(iii) Name a clean fuel.

(iv) Two health hazzards of pollution

 

SOLUTION: