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It does not divide into 360 evenly, so it cannot work. The resource extends pupils' thinking about rotational symmetry. By asking for a figure with a rotational symmetry of a seemingly impossible angle, the activity requires learners to think about multiples of angles of rotational symmetry.
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CCSS:
Designed
Concepts
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Instructional Ideas
- Provide the class either with manipulatives or technology to investigate
- Divide classmates into groups and have each group defend that they have found all of the possible polygons meeting the criteria
Classroom Considerations
- Students should be familiar with rotational symmetry
Pros
- Provides a detailed discussion of the task
- Gives suggestions for assessment and extensions
Cons
- None