About the
Gearing up ? Learning About Gears
Lesson
Summary
The reading introduces the children to the concept of gears.
Lesson Objectives
• The children will understand what gears are used for.
•
The children will be able to explain how spur gears work.
Suggested Grades
4th Grade
Lesson Excerpt
The simplest and most common gears are spur gears. A spur gear is a wheel with teeth, or cogs, around its rim.
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