• Congruent triangles create geometric designs used in architecture and physical sciences.
• Proofs of congruent triangles promote the development of logical thinking to reach a desired
  conclusion.

• What are congruent figures?
• How can triangles be proved congruent?
• How do you extend the use of congruent triangles?
• How can triangles be classified?
• What properties can be identified for special triangles?

• To be able to prove triangles congruent.
• To be able to use congruent triangles to
  form other conclusions.
• To be able to apply properties of special
  triangles.

• Test
• Quizzes
• Practice problems

Activities:

• Complete problems involving proofs.
• Complete problems involving algebraic applications of congruent triangles and properties of
  special triangles.
• Form conclusions based on given information.

State Goals:

• 9.B.4 Recognize and apply relationships within and among geometric figures.
• 9.C.4c Develop and communicate mathematical proofs.