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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?

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.

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.