Class 08 Mensuration -1 Volume and Surface area of cube and cuboid

 

Mensuration

Activity-1 : Volume and Surface area of cube and cuboid DATE:

AIM / Objective:

To find the volume and surface area

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of volume and surface area

 

PROCEDURE:

Take 3 dice of side 1 cm. Keep these together as shown.

 

 

LEARNING ASSESSMENT:

 

Find the surface area and volume of all cubes separately and also find volume of the cuboid formed.

SOLUTION:

 

Class 08 Visualizing Solid Shapes -2 Form the net of following 3-D figures

 

Visualizing Solid Shapes

Activity-2 :

Form the net of following 3-D figures

DATE:

 

AIM / Objective:

To Form the net of following 3-D figures

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of 3D shapes

 

PROCEDURE:

 

LEARNING ASSESSMENT:

 

Form the net of 3-D figures

 

SOLUTION:

 

Class 08 Visualizing Solid Shapes -1 Identification of Shapes

 

Visualizing Solid Shapes

Activity-1 : Identification of Shapes

DATE:

 

AIM / Objective:

To identify shapes

 

MATERIALS REQUIRED:

Pencil, scale, eraser

 

PREREQUISITE KNOWLEDGE:

Concept of shapes

 

PROCEDURE:

 

LEARNING ASSESSMENT:

 

Identify and tell how many solid cubes are used to make the stack

Make similar pictures and identify the parallel lines and triangle in them also.

 

SOLUTION:

Class 08 Algebraic Identities -2 Verification of (a^2-〖 b〗^2) = (a+b) (a-b)

 

Algebraic Identities

Activity-2 :

Verification of (a^2 - b^2) = (a+b) (a-b)

DATE:

 

AIM / Objective:

To verify the identity (a^2 - b^2) = (a+b) (a-b)

 

MATERIALS REQUIRED:

Pencil, scale, eraser, graph sheet

 

PREREQUISITE KNOWLEDGE:

Concept of Algebraic identity

 

PROCEDURE:

Take a piece of cardboard. Draw the rectangles as shown.

(Instructions to be given in class)

 

 

LEARNING ASSESSMENT:

Verify (a^2 - b^2) = (a+b) (a-b)

 

SOLUTION: