Image of a completed foldable - Section 5: The Angles Formed When Any Two Lines Are Cut by a Transversal

 
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An Introduction to Proof and Parallel Lines

Unit 3: Parallel Lines
Lesson 1 of 5

Objective: SWBAT identify the angle pairs created by parallel lines, and solve for angle measures. SWBAT solve for angle measures using the vertical angles theorem and apply the theorem to proofs.

Big Idea: Students are introduced to the two-column proof, and put this knowledge to work on vertical angles and the angle pairs created by parallel lines and transversals.

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4 teachers like this lesson
Subject(s):
Math, Geometry, parallel lines, transversals, corresponding angles, Similarity and Congruence, substitution, vertical angles, proof, reflexive property, alternate interior angles, same, skew lines
  90 minutes
image parallel lines 1
 
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