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"Cardboard Automata are a playful way to explore simple mechanical elements such as cams, levers, and linkages, while creating a moving sculpture. This activity is easy to start but may become more and more complex as you become familiar with possible motions and imagine ways to artistically decorate your contraption. Cardboard automata use levers, cams, cam followers, linkages, and other mechanisms to make unique personalized creations."

This unavoidable and irreducible complexity means that schools are challenging place to study, to understand and to manage change within. Even for the teacher who spends everyday inside the school there is so much going on that unguided observations and the plans based upon them come with no guarantee of success. - We need a lens and a lever to manage this complexity. -  Such a lens is offered by the 'cultural forces'.

Wedge and Lever; Ramp and Pulley; Wheel and Axle Flash activities to allow student experimentation.