Use triangles – they are an engineer’s best friend when building bridges. Use a lot of popsicle sticks – sheer mass can perform very well. One team plugged in an iron, turned it upside-down, made a little pot out of aluminum foil and then melted glue in it so that they had a pot of glue that they could dip things in. In my competition, I set a time limit and so it was very important that teams be able to work together and develop a plan so that they could build their bridge in time.
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