The document discusses teaching students about volume. It explains that volume is the amount of space an object occupies and is measured in cubic units like cm3 or m3. It defines that the volume of a cuboid is calculated as length x breadth x height. Students are taught to calculate volumes of cubes and cuboids using this formula. They also learn that 1 liter is equal to 1000 cm3, so 1 ml equals 1 cm3. Hands-on practice with unit cubes helps develop spatial skills and understanding of these concepts.

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2. 

3.  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.

4.  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.

5.  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

6. Cuboid A
6 x 4 = 24 cm3
*** State that the volume of a cuboid is volume = length x breadth x height ***

7. 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 ***

8. Height =
2 cm
Breadth =
4 cm
Cuboid B Length = 6 cm
*** State that the volume of a cuboid is volume = length x breadth x height ***

9.  Volume = 6 x 4 x 2
= length x breadth x height
= 48 cm3
Height =
2 cm
Breadth =
4 cm
Length = 6 cm
*** State that the volume of a cuboid is volume = length x breadth x height ***

10. D
D D
Cuboid Cuboid Cube
Cube
C Cuboid C
X C Z
Z
A B A Y
Y B A B
*** Application of volume = length x breadth x height ***

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

12.  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 ***

13. THE END