Build solids using unit cubes.

Draw cubes and cuboids on dot paper and understand their differences.

State that the volume of an object is the amount of space it occupies.

Recognise that the volume of a solid, a cube or a cuboid is measured in cubic units i.e. cm3 or m3.

State that the volume of a cuboid is volume = length x breadth x height.

Find the volume of a cube and cuboid using the formula derived earlier.

Recognise that 1 litre (1000 ml) is equal to 1000 cm3 i.e. 1 ml = 1cm3.

Concept of volume VS mass of an object Utilise everyday examples from our surroundings

Poor spatial visualisation skills Hands-on practise using unit cubes (concrete aspect

of CPA) Awareness of hidden cubes at the bottom level

Over-emphasis on numerical cues Hands-on practise using unit cubes (concrete aspect

of CPA) Derivation of formula

*** State that the volume of a cuboid is volume = length x breadth x height ***

Cuboid A

6 x 4 = 24 cm3

*** State that the volume of a cuboid is volume = length x breadth x height ***

Cuboid B

24 x 2 = (6 x 4) x 2 = 48 cm3

*** State that the volume of a cuboid is volume = length x breadth x height ***

Cuboid B Length = 6 cm

Breadth = 4 cm

Height = 2 cm

Volume = 6 x 4 x 2

= length x breadth x height

= 48 cm3

*** State that the volume of a cuboid is volume = length x breadth x height ***

Length = 6 cm

Breadth = 4 cm

Height = 2 cm

*** Application of volume = length x breadth x height ***

Cuboid X

A B

C

D

Cuboid Y

Cuboid YA B

C

D

Cube Z Cube Z

A B

C

D

***Recognise that 1 litre (1000 ml) is equal to 1000 cm3 i.e. 1 ml = 1cm3 ***

Volume of water in cubical container = 10 cm x 10 cm x 10 cm

= 1000 cm3

Since the 1000 cm3 of water fills up exactly the 1 litre measuring jug,

1000 cm3 = 1 litre = 1000 ml

i.e. 1 cm3 = 1 ml

***Recognise that 1 litre (1000 ml) is equal to 1000 cm3 i.e. 1 ml = 1cm3 ***

THE END