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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.
A Child Is Full of ...
My cousin was 24 years old on Friday April 5th in 1974. On what day of the week was she born?
Age 7 to 11
Challenge Level
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Ten green bottles hanging on a wall
Ten green bottles hanging on a wall If one green bottle should accidentally fall There'd be nine green bottles hanging on the wall Nine green bottles ..... |
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| If the first bottle fell at ten past five in the morning ($5.10$ a.m.) and the others fell down at $5$ minute intervals, what would the time be when the last bottle fell down? |
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.