More great ideas from Lucknow - showing how one activity can be used in many different ways to extend student thinking.
In one class the students had been constructing a marble track using meter rules (with the 1cm groove down the middle), cardboard tubes and anything else they could lay their hands on! There had been lots of activity getting the pieces lined up and finding ways to get the marble to go round corners. Then they'd used the stopwatch to see how long the marble would take to travel from start to finish. The week we were visiting students were still experimenting with different set ups in the classroom but the concept had also moved out doors.
In the sandpit students were digging tracks in the sand for golf balls - adjusting the levels when the gradient was insufficient to get them to roll.
In another area students were using pieces of pvc pipe and long cardboard tubes to make a super sized marble track.
