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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?

A Calendar Question

Age 7 to 11 Challenge Level:

Do you know which years are leap years? They are the years which are divisible by $4$ so $2002$ was not a leap year but $2004$ was a leap year.
Why not make a table of results as you work them out?