Measuring mass and weight
Measure and begin to record mass/weight using non-standard and standard units
Share and support
Teaching Table
Set out your lesson
Compare mass with a balance, record equal-unit mass and read a supplied simple gram scale.
Distinguish lower/higher and count equal units. Explain that size alone need not determine heaviness.
Directed source edges are preserved, not assumed completed. If the readiness probe is difficult, model with support and record supported practice instead of independent evidence.
Use the supplied stage-specific structured materials. Optional real balance and equal blocks or known masses; never balance on fragile or improvised sharp supports. Supplied mass-scales.svg permits a safe paper-only reasoning task.
Show, guided, put teaching sheet aside, then task sheets in order; adult keys remain private.
No printing or cutting is required unless explicitly choosing a physical construction. Exact paper alternatives are in each material; adaptations change the evidence mode as stated.
Materials are ready in each step. Use them on screen or print just the current step. Put teaching examples aside before the learner tries.
What this lesson covers and its limits
These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.
- partial: Measure and begin to record mass/weight using non-standard and standard units
Mass comparison and notation; practical use requires real observation. No equivalence between arbitrary blocks and grams, and no fabricated measured weights. This is a bounded task opportunity, not established attainment or automatic use across contexts.
- partial: Use a balance to compare masses of two objects
Mapped task(s) offer this clause only within the supplied examples. Mass comparison and notation; practical use requires real observation. No equivalence between arbitrary blocks and grams, and no fabricated measured weights. No attainment or automatic/general performance is claimed.
- partial: Measure mass using non-standard units (e.g. 'this book weighs 5 cubes')
Mapped task(s) offer this clause only within the supplied examples. Mass comparison and notation; practical use requires real observation. No equivalence between arbitrary blocks and grams, and no fabricated measured weights. No attainment or automatic/general performance is claimed.
- partial: Begin to read a simple scale for mass
Mapped task(s) offer this clause only within the supplied examples. Mass comparison and notation; practical use requires real observation. No equivalence between arbitrary blocks and grams, and no fabricated measured weights. No attainment or automatic/general performance is claimed.
- partial: If {{name}} uses balance scales to compare two objects, can they tell you which is heavier — and if given weights like 100g, can they balance an object on the scale?
Mass comparison and notation; practical use requires real observation. No equivalence between arbitrary blocks and grams, and no fabricated measured weights. This is a bounded task opportunity, not established attainment or automatic use across contexts.
Mass comparison and notation; practical use requires real observation. No equivalence between arbitrary blocks and grams, and no fabricated measured weights.
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Teaching approaches
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1 approach
Compare mass with a balance, record equal-unit mass and read a supplied simple gram scale.
Compare mass with a balance, record equal-unit mass and read a supplied simple gram scale.
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Learning resources
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Check understanding
- Use a balance to compare masses of two objects
- Measure mass using non-standard units (e.g. 'this book weighs 5 cubes')
- Begin to read a simple scale for mass
“If your child uses balance scales to compare two objects, can they tell you which is heavier — and if given weights like 100g, can they balance an object on the scale?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Measurement
- Age range
- Ages 5–6
Standards