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
This investigation explores using different shapes as the hands of
the clock. What things occur as the the hands move.
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?
Three trains travel from City Station to Farmland Station on the
same morning. The Express leaves City 10 minutes after the All
Stations train, but arrives at Farmland 10 minutes before it.
The All Stations takes 50 minutes to reach Farmland and arrives
The Goods train leaves 20 minutes before the All Stations and
arrives at Farmland 20 minutes after the Express.
Work out the timetable. That is; what time does each train leave
City Station and what time does each train arrive at Farmland