## Reflection: Lesson Planning SAS-sy Triangles - Section 4: Exploration #2 and SSA

Developing a Conceptual Understanding: SAS-sy Triangles

# SAS-sy Triangles

Unit 4: Tremendous Triangles
Lesson 4 of 10

## Big Idea: In this student-centered lesson, students will explore and explain why the SAS congruence theorem works to prove triangles congruent.

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85 minutes

### Stephanie Conklin

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