MAKING MARVELOUS MARBLE TRACKS!

Today 4 K worked in teams to attempt to build the longest track that will guide a marble to an 8 inch square. The structures were measured from the start of the track to where the marble lands. Structures could not be attached to the floor. The marble must land in the 8 inch square and stay there. The class had 3 minutes to formulate a plan. Then, they had exactly 10 minutes to complete the challenge.