Isosceles Triangles on a Geoboard

This Isosceles Triangles on a Geoboard activity & project also includes:

How many isosceles triangles can you create on a seven-by-seven peg board? This is the task scholars attack in their collaborative groups. The problem prompts discussion on distance, slope, and the definition of isosceles triangles.

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CCSS: Designed
Instructional Ideas

  • Scaffold for lower level pupils by providing examples and non-examples of isosceles triangles on the geoboard
  • Record new vocabulary in a graphic organizer
Classroom Considerations

  • Requires a geoboard for individuals to use as a manipulative

  • Promotes communication within collaborative groups
  • Includes an answer key

  • None
Common Core