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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?

Train Timetable

Age 7 to 11
Challenge Level

Josh says:

The goods train departs from City station at 9.20 and arrives at Farmland station at 10.40. The all stations train departs at 9.40 and arrives at 10.30, and the express departs at 9.50 and arrives at 10.20.

Kay has set the solution out in a table:


Well done also to Alison for sending in a correct solution.