In grades K-2, children learn to use certain simple and compound tools and they begin to understand that these tools help them complete tasks more easily. In this lesson, children will design and create a compound machine out of recycled materials. A machine is a tool used to make work easier. Simple machines are simple tools used to make work easier. Compound machines have two or more simple machines working together to make work easier. Children will later be able to further explore simple machines in their visit to the How Does It Work exhibit.
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