Inquiry Discussion of Simple Machines
Summary
This is a guided discussion (in groups and as a class) to direct students to think of complex machines that we use every day as being made up of many simple machines, and to formulate a definition for what a simple machine is. It also groups everyday simple machines into groups of similarities, identifying the six types of simple machines.
Learning Goals
Concepts:
All complex machines are made up of combinations of simple machines.
Simple machines are used in everyday life.
Machines are used to make work easier.
Vocab words:
Simple Machine
Lever (1st, 2nd, 3rd class)
Pulley
Inclined Plane
Screw
Wheel and Axle
Wedge
All complex machines are made up of combinations of simple machines.
Simple machines are used in everyday life.
Machines are used to make work easier.
Vocab words:
Simple Machine
Lever (1st, 2nd, 3rd class)
Pulley
Inclined Plane
Screw
Wheel and Axle
Wedge
Context for Use
This should be used as an introduction to talking about simple machines. Depending on how guided discussions are, it could take about 20-30 minutes
Description and Teaching Materials
Students will be in groups, and then will share ideas with each other. Groups will also share with the class, and conclusions will be made as a class.
Outline for Simple Machines Discussion (Microsoft Word 2007 (.docx) 12kB Aug25 09)
Teaching Notes and Tips
Students will initially think of machines as complex (i.e. computers, cars, etc.) and may have the misconception that machines require power. It will also help to have actual examples of complex machines for students to examine themselves to determine they are made up of simple machines.
Assessment
Students will come up with their own list of 10 simple machines that they use every day, identifying which simple machine it is.
Standards
There are no specific standards dealing with simple machines.