Identical discs are flipped in the air. You win if all of the faces
show the same colour. Can you calculate the probability of winning
with n discs?
Six balls of various colours are randomly shaken into a trianglular
arrangement. What is the probability of having at least one red in
Your partner chooses two beads and places them side by side behind a screen. What is the minimum number of guesses you would need to be sure of guessing the two beads and their positions?
7 balls are shaken in a container. You win if the two blue balls
touch. What is the probability of winning?
The King showed the Princess a map of the maze and the Princess was
allowed to decide which room she would wait in. She was not allowed
to send a copy to her lover who would have to guess which path. . . .
Which of these ideas about randomness are actually correct?
Can you work out which spinners were used to generate the frequency charts?
Can you generate a set of random results? Can you fool the random
What are the likelihoods of different events when you roll a dice?
You and I play a game involving successive throws of a fair coin.
Suppose I pick HH and you pick TH. The coin is thrown repeatedly
until we see either two heads in a row (I win) or a tail followed
by. . . .
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
Four cards are shuffled and placed into two piles of two. Starting with the first pile of cards - turn a card over...
You win if all your cards end up in the trays before you run out of cards in. . . .
What is special about dice?
How can we use dice to explore probability?
This set of resources for teachers offers interactive environments
to support probability work at Key Stage 4.