Find ways to spin a figure without it looking like it was rotating. The segment of a large geometry playlist introduces the idea of rotational symmetry. Using presentation tools, the presenter demonstrates whether particular figures have rotational symmetry or not.

Concepts

rotational symmetry, symmetry, angle of rotation

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Additional Tags

math

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Instructional Ideas

• Challenge individuals to find figures with given angles of rotational symmetry
• Determine a formula to express all the angles of rotational symmetry if one is known

Classroom Considerations

• It is beneficial if the class already understands the idea of rotation and angle of rotation

• This video is hosted on YouTube

Pros

• Contains a link to more rotation symmetry resources including practice problems
• Uses more than just geometry figures in the examples

Cons

• None