Mathematics Measurement Procedural 10–11 yrs

Volume as additive

体积的可加性

Description

Recognise volume as additive; find volumes of composite solid figures made of two or more non-overlapping right rectangular prisms

Mastery Evidence

✓ 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 your child find the volume of each section separately and add them to get the total volume of the pool?