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Dice and clock

It’s mathemagic o’clock! Throw the dice and I’ll guess what you rolled.

Throw the dice and move around the clock. With only two pieces of information, I’m able to find the value of the first die. How do I do it?

Once you find the key behind this trick, you’ll become the magician! This trick focuses on mathematical reasoning. The context might look complicated, but the solution is within everyone’s reach.

  • This trick is excellent for practising equivalences, regularities, as well as clockwise and counterclockwise directions. It is easy to recreate and students will be able to find the solution alone (allow approximately 30 minutes for cycle 2 of elementary school (Quebec) or grades 3 and 4). You can use the clock available via the link provided.

  • Planning notes