Probability - Stage 3
Sociable Cards
Move your counters through this snake of cards and see how far you can go. Are you surprised by where you end up?
Flippin' Discs
Discs are flipped in the air. You win if all the faces show the same colour. What is the probability of winning?
What Does Random Look Like?
Engage in a little mathematical detective work to see if you can spot the fakes.
Cosy Corner
Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?
Two's Company
Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?
At Least One...
Imagine flipping a coin a number of times. Can you work out the probability you will get a head on at least one of the flips?
Statistical Shorts
Can you decide whether these short statistical statements are always, sometimes or never true?
Interactive Spinners
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
Do You Feel Lucky?
Some people offer advice on how to win at games of chance, or how to influence probability in your favour. Can you decide whether advice is good or not?
Non-transitive Dice
Alison and Charlie are playing a game. Charlie wants to go first so Alison lets him. Was that such a good idea?
You may also be interested in this collection of activities from the STEM Learning website, that complement the NRICH activities above.