Class 07 Fractions and decimals tangram activity

 

FRACTIONS AND DECIMALS

 

ACTIVITY – 2. Tangram activity 2

DATE:

 

AIM / Objective:

To know the properties of FRACTIONS AND DECIMALS.

 

MATERIALS REQUIRED:

Pencil, scale, eraser, graph sheet

 

PREREQUISITE KNOWLEDGE:

Concept of FRACTIONS AND DECIMALS

 

PROCEDURE:

Description:

1. Draw a big square. Convert into four small squares by paper folding activity. Now we can see each part is 1/4 of the whole.

Again you can divide figure into other parts as directed in the figure and decide the value of each part.

 

LEARNING ASSESSMENT:

Find the value of each part.

SOLUTION:

A =1/4,                   B = 1/8,                  C= 1/8

D= 1/32                  E= 1/32                  F= 1/32

G= 1/32                  H= 1/8                    I= 1/16

J=3/16

 

Lcm = 32 verify by ¼+1/8+1/8+1/32+1/32+1/32+1/32+1/8+1/16+3/16

=(8+4+4+1+1+1+1+4+2+6)/32

=32/32

=1

Class 07 Fractions and decimals super market sale

FRACTIONS AND DECIMALS

ACTIVITY – 1. Supermarket sale

DATE:

 

AIM / Objective:

To find the largest and smallest fraction from the given fractions.

 

MATERIALS REQUIRED:

Pencil, scale, eraser, colour pencils / crayons

 

PREREQUISITE KNOWLEDGE:

Concept of FRACTIONS AND DECIMALS

 

PROCEDURE:

Description:

In the super market there are five shopkeepers A, B, C, D, E. If shopkeeper A sells his 2/3 of products in a day, B sells 3/7 of products, C sells 4/5 of products in a day, D sells 5/6 of products in a day and E sells 7/8 of products in a day, who sells more products in a day? Cut 5 equal circles

 

LEARNING ASSESSMENT:

Represent each fraction on the circles and find the largest fraction and the smallest fraction.

 Solution

A sells  =   

B sells  =  (smallest)

C sells    =

D sells  =

E sells  =  (largest)

Class 07 Integers Play with balls

 

INTEGERS

ACTIVITY – 3 PLAY WITH BALLS

DATE:

 

AIM / Objective:

To find the value of integers.

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of Integers

 

PROCEDURE:

Description:

Students are supposed to take two different coloured sketch pens, same number of identical balls are to be drawn for one integer as indicated. Perform activity

according to given example.

 

Note:  –ve symbol means opposite/change of colour

Example:

Let, Green for +ve integer

Red for –ve integer

1) 2 x 3 (2 times 3)

2) –2 x (–3) {–2 times (–3)} {6}

 

LEARNING ASSESSMENT:

Show the following in the form of pictures of balls.

i) –3 x 4   ii) 2 x –4

iii) –3 x –4       iv) 4 x 5

SOLUTION:

 

 

 

Class 07 Integers The jumping frog

 

 

INTEGERS

 

ACTIVITY – 2. The jumping frog

DATE:

AIM / Objective:

To find the value of integers,

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of Integers

 

PROCEDURE/ DESCRIPTION:

Description:

Represent the given situation diagrammatically and  mathematically.

 Use different colours for positive and negative integers.

 

Situation:

A frog is there in a 12m deep well. The frog wants to jump out of the well. Every time he jumps 3m and falls back by 1m.

 

LEARNING ASSESSMENT:

 

 In how many jumps will he come out of the well?

 Which value do you learn from the frog?

 

SOLUTION: