Reflection: Quizzes Similarity Group Assessment - Section 4: Group Similarity Quiz


Given that students have had several lessons to practice solving and proving similar polygons, I wanted to reinforce the idea of showing high quality work.  Since certain procedures like finding and employing a scale factor can become routine, students tend to do this kind of work in their heads, which prevents them from clearly showing their solving methods.  For this reason, I made it a point to emphasize that I would assess their work and assign grades based on their ability to communicate their thought process, which is critical to students’ demonstrating mastery of solving and proving similar polygons.

  High Quality Work
  Quizzes: High Quality Work
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Similarity Group Assessment

Unit 12: Triangle Similarity and Trigonometric Ratios
Lesson 3 of 11

Objective: Students will be able to extend their understanding of triangle similarity to prove the parallel and perpendicular slope criteria.

Big Idea: Students will be able to apply their understanding of triangle similarity in novel ways to write proofs and demonstrate their understanding on a group assessment.

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Math, Geometry, Trigonometry, reasoning and proof, similar triangle, alternative assessments
  80 minutes
midsegment proof picture
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