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Which times on a digital clock have a line of symmetry? Which look the same upside-down? You might like to try this investigation and find out!

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Clock Hands

This investigation explores using different shapes as the hands of the clock. What things occur as the the hands move.

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Ten Green Bottles

Do you know the rhyme about ten green bottles hanging on a wall? If the first bottle fell at ten past five and the others fell down at 5 minute intervals, what time would the last bottle fall down?

The Hare and the Tortoise

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

There are several approaches to this problem. Finding out how many kilometres an hour the tortoise travelled at is a very good starting point for comparing the speeds and time taken to cover the course by the two animals.

(The speed is the number of kilometres in an hour that is travelled.)