IMC Key Stage 3 · 9. Counting and probability
Rules of sum and product, complements, grid paths and figures, recursions for tilings, and probability trees.
IMC Key Stage 3 – Selected topics
Choose between the rule of sum, the rule of product, permutations and combinations, and justify the choice.
Count with the complement, inclusion–exclusion and glued blocks.
Count paths and figures on grids, including grids with blocked points.
Set up and test recursions for tilings and strings.
Compute probabilities with trees when outcomes are not equally likely.