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
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
Can you work out which drink has the stronger flavour?
Yesuhei used a similar