As if geometry weren't puzzling enough! Give your classes a challenge to solve and watch as they discuss and develop ideas. Part of a larger playlist that explores physics concepts, the video lesson offers a presentation of the puzzle and a detailed explanation of the answer. 

Concepts

reflections, similar triangles

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Additional Tags

science

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Instructional Ideas

• Pause the video after the presentation of the puzzle; ask for clarifying questions and then allow pupils time to offer solutions
• Incorporate during a unit on similar triangles

Classroom Considerations

• Expects a solid understanding of the criteria for similar triangles

• This video is hosted on YouTube

Pros

• Presents the problem to several mathematical experts to offer a solution
• Includes an explanation with diagrams to offer clarity

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 RST.9-10.7 RST.11-12.7