KS3MAT15 Probability and sample spaces personal learning checklist

England KS3 Maths · Probability

Short checks sample knowledge and methods; constructions, proofs, modelling and sustained problem solving need working and teacher judgement.

Name ____________________ Class __________ Date __________

Tick one box per statement. Red: need help. Amber: partly confident. Green: can do independently.

I canRedAmberGreen
Probability
Interpret the probability scale and equally likely outcome models
Calculate probabilities when category outcomes are unequally likely
Use exhaustive non-overlapping outcomes and complements
Experiments
Plan and record a probability experiment consistently
Compare experimental estimates with theoretical models and trial counts
Calculate expected frequencies without treating them as guarantees
Sets
Enumerate intersections, unions and complements systematically
Interpret overlapping set totals correctly
Sample spaces
Create tables or grids for single and combined events
Calculate theoretical probabilities from combined-event sample spaces
Adapt a sample space when replacement or order changes
Conclusions
Explain independent trials and evaluate a probability claim

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