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
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?
My cousin was 24 years old on Friday April 5th in 1974. On what day
of the week was she born?
It seems that everyone found this a bit
tough! It certainly is very hard to picture the shapes moving
around. You really need to find some clear plastic to draw the
shapes on, so you can turn them around and see what happens. Or,
you could just cut some out of cardboard. You might try drawing
them on thin paper and holding them up on a window to let the light
Try one of these ways of making the
clock hands and have another go at the investigation. We would be
thrilled to get some solutions on this one.