Congruent triangles (conceptual identification)

Teacher tools for this standard

Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework

Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
Guided Notes →One page your students fill in and keep.
Exit Ticket →Three items at the end of class. No student accounts.
Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
Homework →Assign practice; it grades itself.

"Use concepts and theorems relating to congruence and similarity of triangles to solve problems." "Determine which statements may be required to prove certain relationships or to satisfy a given theorem."

"Use concepts and theorems relating to congruence and similarity of triangles to solve problems."
"Determine which statements may be required to prove certain relationships or to satisfy a given theorem."

What you'll learn

Define congruence for triangles as having all corresponding sides and angles equal
Identify corresponding parts of congruent triangles from diagrams with tick marks and arc marks
Write congruence statements with vertices in corresponding order
Use known congruence between triangles to find missing side lengths and angle measures
Recognize which given facts are sufficient to conclude two triangles are congruent (SSS, SAS, ASA, AAS, HL) and which are not (SSA, AAA)

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