This lesson is a brief, one session lesson to introduce students to the various types of simple machines. Definitions of the various simple machines are given. Students are given visual examples of the simple machines as they occur in everyday life. Following the lesson, there is a link to a review that students really enjoy.
This lesson was used as an introduction/review prior to beginning an engineering unit on simple machines in a fifth grade classroom. However, it can easily be used in a third or fourth grade classroom.