This collection of articles for teachers outlines an approach for teaching probability at secondary level.
A practical experiment which will introduce students to tree diagrams, and help them to understand that outcomes may not be equally likely.
A practical experiment which uses tree diagrams to help students understand the nature of questions in conditional probability.
A practical experiment provides data. Moving onto expected results provides a context to establish the multiplication rule in probability, and an intuitive approach to conditional probability.
What's the fairest way to choose 2 from 8 potential prize winners? How likely are you to be chosen?