If at First You're Not the Same, Try Triangles! (Part 1)

Congruent sides + congruent angles = congruent triangles. Scholars first create several triangles that satisfy given conditions using straws. They investigate the triangles to see which are congruent, and then they define what it means for triangles to be congruent.

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CCSS: Adaptable
Instructional Ideas

  • Have pupils create a graphic organizer comparing and contrasting congruent and similar triangles
Classroom Considerations

  • Some prior preparation is necessary
  • Learners should be familiar with types of angles and triangles

  • Provides a recording sheet for the activity
  • Includes a PowerPoint you can use in class

  • None
Common Core