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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?

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?