Measuring length (age 10+)

CONCEPTUAL

Mathematics›Measurement|Ages 10—11|ID: mt_IuHa5UI5od

Recognise volume as an attribute of solid figures; understand that a unit cube (side length 1 unit) has 'one cubic unit' of volume and can be used to measure volume; a solid packed with n unit cubes has volume n cubic units

Mastery Evidence

Explain what 'volume' means for a 3D shape and how it differs from area
Identify a unit cube and explain that it represents one cubic unit of volume
Determine the volume of a small solid by counting the unit cubes that fill it

Assessment Prompt

“If [child] builds a solid shape using small cubes, can they count the cubes to find the volume — and explain what "one cubic centimetre" means in everyday terms?”

Prerequisites1

Estimating volume
hardAges 9—10

Show full prerequisite tree

Estimating volume hard
Volume as an attribute formalises Y5 informal volume estimation with cubes
- Area (age 8+) hard
  Counting unit squares for area supports extending to counting unit cubes for volume
  - Understanding Area hard
    Must understand unit squares and area concept before measuring by counting
    - 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
        
        Measuring length soft
        Measuring with units benefits from ability to order and compare lengths
        
        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
      - Choosing measurement units soft
        Choosing appropriate tools builds on choosing appropriate units
        
        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 hard
        Using standard units for mass extends from beginning to measure mass
        
        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

Counting Unit Cubes
hardAges 10—11