Today Elliot’s father came in to talk to us about how to make tracks for a marble run.
He explained how gravity is the force by which a planet or other body draws objects toward its centre. The force of gravity keeps all of the planets in orbit around the sun. Every time you jump, you experience gravity. It pulls you back down to the ground. Without gravity, you'd float off into the atmosphere.
He also explained about angles and friction. Depending on the angle of your track will depend on whether the marble goes fast or slow. Also if you put rough surfaces on the track this will also slow the marble down.
Elliot’s father worked with four boys from rooms 7, 8 and 9 to create a large marble track. They made a hole through the large box so the marble could travel from one side to the other.
Students from rooms 7,8 & 9 all made their own versions of a marble run. There was lots of discussion about what to do when it didn’t go in the right direction, turn a corner, or they needed to slow it. All students planned their own tracks for a marble run, made them, modified their designs when the marble wouldn’t stay on the track and tested the length of time it took for the marble to go from the top to the bottom.
This was an amazing day. Students were self-directed, co-operative and managing their resources and timeframes effectively.
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