Mathematics·Measurement·procedural
Volume as additive
Recognise volume as additive; find volumes of composite solid figures made of two or more non-overlapping right rectangular prisms
Suggested ages 10–11
Learning journey
Your child is mastering advanced measurement skills — calculating volume and area using formulas, converting between different units of measurement, and solving real-world problems involving length, mass, and capacity.
Evidence of understanding
- Decompose an L-shaped solid into two cuboids and calculate total volume
- Solve a real-world problem requiring the volume of a composite figure (e.g. a step-shaped structure)
- Explain why splitting a composite solid into rectangular prisms allows calculation of total volume
Assessment prompt
If an L-shaped swimming pool is made of two rectangular sections, can Volume as additive find the volume of each section separately and add them to get the total volume of the pool?
Standards alignment
No external standards are linked to this topic.