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Lesson Planet
This Why Are Manhole Covers Round? instructional video also includes:
Discover the peculiar geometric property of the curve of constant width, the Reuleaux triangle, and their intriguing connection to manhole covers with yet another fascinating TED-Ed video.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Consider having some manipulatives or three-dimenstional objects on hand in order to further demonstrate the concepts being discussed
Classroom Considerations
- Pupils should have a strong understanding of several geometry concepts, such as pi, the points of a triangle, and calculating the area and perimeter of all geometric shapes, prior to beginning this video
Pros
- Illustrations and animations help to explain the geometry concepts
- Includes customizable online assessment, additional resources, and discussion questions
Cons
- Speaker moves very fast through the material; it will be important to pause at several points in order to clarify concepts and answer questions