Time

If it takes four men one day to build a wall, how long does it take 60,000 men to build a similar wall?

Consider a watch face which has identical hands and identical marks for the hours. It is opposite to a mirror. When is the time as read direct and in the mirror exactly the same between 6 and 7?

Two trains set off at the same time from each end of a single straight railway line. A very fast bee starts off in front of the first train and flies continuously back and forth between the two trains. How far does Sidney fly before he is squashed between the two trains?

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?

How many days are there between February 25th 2000 and March 11th?

This investigation explores using different shapes as the hands of the clock. What things occur as the the hands move.

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!