Estimating volume
CONCEPTUALEstimate volume of cuboids using 1 cm³ blocks; estimate capacity of containers using water
Mastery Evidence
- Build a cuboid from 1 cm³ blocks and state its volume
- Estimate how many cm³ blocks would fill a given box
- Estimate the capacity of a jug by comparing to known litre measures
Assessment Prompt
“If [child] has a small cardboard box, can they estimate how many 1 cm³ cubes would fit inside it — and then fill it with sugar cubes to check?”
Prerequisites1
- Area (age 8+)hardAges 8—9
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- Area (age 8+) hard
Counting unit squares for area supports extending to counting unit cubes for volume
- Measuring length (age 7+) soft
Length measurement experience supports understanding area as a 2D measurement
- Measuring length (age 6+) hard
Using standard measurement tools extends measuring with non-standard units
- Measuring length and height (age 5+) hard
Measuring with iterated units extends Y1 beginning to measure length
- Comparing Lengths & Heights hard
Measuring length with units requires first being able to compare lengths directly
- Measurable Attributes of Objects hard
Comparing lengths/heights requires first identifying length as a measurable attribute
- Comparing Lengths & Heights hard
Ordering 3 objects by length and indirect comparison extends direct length comparison
- Measurable Attributes of Objects hard
Comparing lengths/heights requires first identifying length as a measurable attribute
- Capacity and volume hard
Using standard units for capacity extends from beginning to measure capacity
- Comparing Capacity hard
Measuring capacity with units requires first being able to compare capacities
- Measurable Attributes of Objects hard
Comparing capacity requires understanding capacity as a measurable attribute
- Measuring length and height (age 5+) hard
Using standard units for length extends from beginning to measure length
- Comparing Lengths & Heights hard
Measuring length with units requires first being able to compare lengths directly
- Measurable Attributes of Objects hard
Comparing lengths/heights requires first identifying length as a measurable attribute
- Measuring mass and weight (age 4+) hard
Measuring mass with units requires first being able to compare masses directly
- Measurable Attributes of Objects hard
Comparing mass/weight requires first identifying mass as a measurable attribute
Unlocks1
- Measuring length (age 10+)hardAges 10—11