Mathematics
Measurement and time
Length
Educator section
Memorandum
Leaner section
Content
Activity: to solve problems in context [lo 1.6.2]
1. Your educator will provide the required paper. Examine the diagram below and copy it exactly. Try to construct your own cube from this.
- You now have a container with the following measurements:
1 cm by 1 cm by 1 cm
- We therefore say that the volume of the container is:
1 cm × 1 cm × 1 cm = 1 cm3
(one cubic centimetre)
volume = length × width × height
2. How many of these boxes (of 1 cm 3 ) will you need to build a cube of 8 cm 3 ? (2 cm × 2 cm × 2 cm)
2.1 8 cm3 = (2 cm × 2 cm × 2 cm): ___________________ cubes
2.2 27 cm3 = (3 cm × 3 cm × 3 cm): __________________ cubes
2.3 64 cm3 = (4 cm × 4 cm × 4 cm): __________________ cubes
2.4 125 cm3 = (5 cm × 5 cm × 5 cm): _________________ cubes
Assessment
Learning Outcome 4: The learner will be able to use appropriate measuring units, instruments and formulae in a variety of contexts.
Assessment Standard 4.8: We know this when the learner investigates and approximates (alone and/or as a member of a group or team):
4.8.3: volume/capacity of objects (by packing or filling them) in order to develop rules for calculating volume of rectangular prisms.