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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!

Clock Hands

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

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?

Slow Coach

Age 7 to 11
Challenge Level

A maths group from Devonshire Primary School sent us a solution for this problem:

The 10am coach will see the 8.40, 9.00, 9.20, 9.40, 10, 10.20, 10.40, 11, 11.20 coach on its way to Betaville. Therefore it sees 9 coaches. We know this because they are travelling at the same speed and on the same path.

Thank you to you all.