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Parallel and Skew Lines

Lines that never intersect.

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Parallel And Skew Lines
Teacher Contributed

RWA Parallel and Skew Lines

Topic

Optical Illusions: Café Wall Illusion

Vocabulary

  • Parallel lines
  • Optical Illusion

Student Exploration

What is the Café Wall Illusion?

Also read about Zoellner’s Illusion

http://mathworld.wolfram.com/ZoellnersIllusion.html

Related PLIX

Play, Learn, Interact, and Xplore more with the Café Wall Illusion.

Extension Investigation

Student can explore and discuss where this optical illusion comes from:

http://www.settheory.com/Glass_paper/cafe_wall_study.html

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