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This unit helps to develop children's understanding of control through investigating simple pneumatic systems and designing and making a model of a monster that has moving parts controlled by pneumatics. This could be linked to stories or poems, or another purpose. A good context is toys to amuse children who are ill in bed. The designing and making assignment requires children to develop skills in working as part of a team.
The techniques used in this unit could be used in another context where something needs to be controlled by moving backwards and forwards or up and down eg a tip-up truck, a jack-in-the-box, moving scenery for a puppet theatre.
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