Grade 8 Mathematics Module 3, Topic B, Lesson 10

Girl at Desk

Student Outcomes

  • Students know an informal proof of the Angle-Angle (AA) criterion for similar triangles.
  • Students present informal arguments as to whether or not triangles are similar based on Angle-Angle criterion.

Downloadable Resources

Common Core Learning Standards

CCLS State Standard
8.G.5 Use informal arguments to establish facts about the angle sum and exterior angle of triangles,...

Curriculum Map