Introduction
Use multiplication to calculate the volume of cuboids and shapes comprised of several cuboids; use division to solve associated inverse problems. Use associativity and commutativity to solve abstract multiplication problems with three factors.
Teaching points
- Teaching point 1: Volume is the amount of space that something occupies.
- Teaching point 2: Volume is measured in cubic units, such as cubic centimetres (cm3) and cubic metres (m3).
- Teaching point 3: The volume of a cuboid can be calculated by multiplying the length, width and height.
- Teaching point 4: Both the commutative law and the associative law can be applied when multiplying three or more numbers.
- Teaching point 5: The choice of which order to multiply in can be made according to the simplest calculation.
