Estimating and Measuring Volume

Name:

Date:

📚 Part 1: WALT, Success Criteria & Multiple Choice

WALT: Estimate volumes using benchmarks, choose appropriate units and tools, and calculate volume of rectangular prisms using Volume = Length × Width × Height.

Success criteria: I can estimate using familiar benchmarks, choose suitable units (e.g. cm³ or L), calculate volume correctly, and explain if my answer is reasonable.

Differentiation: Use centicubes or larger-marked rulers for support; try decimal dimensions or conversions for a challenge.

1. Which unit is best for measuring the volume of a small shoebox?

cubic centimetres (cm³)

metres (m)

litres (L)

grams (g)

2. You estimate a small box will hold about 150 small cubes. After measuring you find its volume is 120 cm³. Is your estimate reasonable?

Yes — your estimate is close enough

No — your estimate is much too high

No — your estimate is much too low

Impossible to tell

3. What is the volume of a rectangular prism with length 8 cm, width 5 cm and height 3 cm?

120 cm³

16 cm³

96 cm³

240 cm³

4. Check all tools that could help measure the capacity (volume) of a water bottle:

Measuring jug (litres/millilitres)

Ruler (to estimate or measure dimensions)

Kitchen scales (grams)

Measuring cylinder (millilitres)

✏️ Part 2: Short Answer — Estimate, Measure, Calculate

5. Estimate the volume of a cereal box that looks about 30 cm long, 20 cm tall and 6 cm deep. Give your estimate and the units you used.

6. If a box has volume 360 cm³, how many 1 cm³ cubes will fill it?

7. A small box measures 4 cm × 3 cm × 5 cm. Calculate its volume. Then say whether it makes sense that the box holds 20 small 1 cm³ cubes.

8. You are measuring the capacity of the school water fountain for a project. Which unit would you choose and why? (One or two sentences.)

🔬 Extension & Reflection

9. Extension challenge: Design a box with volume exactly 60 cm³ using whole-number dimensions. Draw the box to scale and label its length, width and height. Then write the dimensions below and show the calculation.

10. Reflection: How did you check that your answers were reasonable? Describe one estimation strategy you used.

Extension for advanced learners: Try a box with decimal dimensions (e.g. 4.5 cm × 3.2 cm × 5.1 cm) and convert the volume between cm³ and litres (1000 cm³ = 1 L).

Support ideas: Use centicubes or a measuring tape with clear markings; work with a partner or teacher aide if needed.