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Watch the Clock

During the third hour after midnight the hands on a clock point in the same direction (so one hand is over the top of the other). At what time, to the nearest second, does this happen?

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Take the Right Angle

How many times in twelve hours do the hands of a clock form a right angle? Use the interactivity to check your answers.

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Estimating Angles

How good are you at estimating angles?

Clock Hands

Age 7 to 11 Challenge Level:
You could cut out hands from coloured tissue paper or coloured overhead transparencies so you can see the overlap better.