Probability as a Fraction
Describe the probability of simple equally-likely outcomes using unit fractions: the probability of rolling a 6 on a fair die is 1/6, flipping heads is 1/2, picking one specific colour from three equally represented colours is 1/3; place these fractional probabilities on a 0-to-1 probability scale
Typical age: 9–10 years
“If your child flips a fair coin, do they know the probability of getting heads is 1/2 — and can they express similar simple probabilities as fractions and place them on a 0-to-1 scale?”
0 / 3 mastered
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Needs first
- Simple Chance Experiments
Practical experiment experience provides the intuitive grounding that makes fractional probability representation meaningful
- Unit fractionsREQUIRED
Expressing probabilities as unit fractions (1/6, 1/2, 1/3) requires prior knowledge of unit fractions from the Fractions domain
- Equally Likely OutcomesREQUIRED
Using fractions to represent probability only makes sense for equally-likely outcomes, so the equally-likely concept must come first