problem
The dog ate my homework!
Age
11 to 16
Challenge level
A practical experiment which uses tree diagrams to help students understand the nature of questions in conditional probability.
problem
Which team will win?
Age
11 to 14
Challenge level
A practical experiment which will introduce students to tree diagrams, and help them to understand that outcomes may not be equally likely.
problem
Who is cheating?
Age
14 to 16
Challenge level
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.
problem
Prize giving
Age
14 to 16
Challenge level
What's the fairest way to choose 2 from 8 potential prize winners? How likely are you to be chosen?