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Geometry

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Unit 5

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Lesson 10

Triangle Congruence Proofs (Day 5)

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50 minutes

Free

Routines:

Error Analysis, Card Sort, Unpack Quiz

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Lesson Prep

Lesson Details

  • Duration: 50 minutes

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

Prework

  • Cut out class sets of cards for card sort activity

  • Consider joining our online workshop to see how to unpack the upcoming Concept Quiz.

Answer Keys

Classwork

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

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