problem
Favourite
Same Number!
Age
14 to 16
Challenge level
If everyone in your class picked a number from 1 to 225, do you think any two people would pick the same number?
problem
Favourite
Last One Standing
Age
14 to 16
Challenge level
Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?
problem
Discussing Risk and Reward
Age
16 to 18
Challenge level
10 starting points for risk vs reward