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Investigating simple linkages using card models.

A mechanism is a device that changes movement in some way. Linkages are a type of mechanism. There are different types of linkage, each of which change movement in different ways.

This could be used in Key Stage 2 as a stand-alone activity or as an...

Inside this book you can cross all sorts of bridges, climb to the top of the tallest towers and down into some of the longest tunnels.