Primary 2 have been designing and making rolling toys.

We decided the best shape for rolling is a circle but, hexagons can work well too. We thought about how a 20p and a 50p roll even though they are not circles.

First we explored a marble run and predicted that the small marbles would roll down the run and the ramp the fastest. We were so surprised that in four out of four attempts the big marble won the race!

Our teacher was very surprised that half of the groups managed to make their toys roll. She had predicted that most of us would glue and stick the wheels. However, a few groups made moving axles so, the wheels turned round. The toy designs that rolled the best were often the simplest designs.