*Learning Goal: Develop understanding and fluency with triangle congruence proofs.*

# Classwork

- Estimation – Bar Graph
- Warm Up
- Is there enough information?
- Proof Blocks
- Instructions video (taken from here)
- Handout
- Blocks

- Construction Challenge / Spiraling Practice
- Image Credit: Estefania Quintero

# Answers

# Standards

**Common Core**- HSG.SRT.B.5 – Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures.

**TEKS**- G.6(B) – prove two triangles are congruent by applying the Side-Angle-Side, Angle-Side-Angle, Side-Side-Side, Angle-Angle-Side, and Hypotenuse-Leg congruence conditions