A reworking of the Monty Hall Problem:

A reworking of the Monty Hall Problem:

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A set of worksheets based around probabilities using spinners… which… nobody ever uses… except exam boards.

This great upload by numberphile covers the football pitch birthday probability problem. In essence, the probability of sharing a birthday with someone in a football game (including the ref) is more than 50%. Weird but true. You can make a whole lesson out of this, (hint: use Google Calculator for the maths bit, as a normal calculator will die trying), then finish the lesson asking everyone in the class to declare their birthday. Chances are, there will be two the same!