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Lesson plan

Chance: Likely, Unlikely & Experiments

Teacher-facing plan: I do · We do · You do.

Ollie thinking.

Model a chance scale: impossible → unlikely → equally likely → likely → certain. Using Biscuit's basket of 9 brown and 1 green gumnut, reason that brown is likely and green unlikely. Then introduce a repeated experiment: draw-and-replace 20 times, tallying results, and discuss that results vary but cluster toward "more browns".

Together 1. Place events on the chance scale: "the sun rises tomorrow", "I roll a 7 on a normal die", "it rains this week".

Together 2. Predict, then run 20 draws from the basket and tally.

Students complete "Biscuit's Basket: Chance & Experiments", recording predictions and tallies.