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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

Why do this problem?

This problem requires logical thinking and involves working on timetables in an usual way.

Key questions

What times can we be certain of to start with?
How long does each train take?

Possible extension

Learners could try the Slow Coach problem.

Possible support

You could draw out a blank timetable for a child to complete.