PTA (Parallel Lines, Transversals and Angles)
Lesson 4 of 9
Objective: SWBAT identify and apply relationships created by angles formed by parallel lines cut by a transversal.
Students will review identifying angles like alternate interior, alternate exterior, corresponding, and consecutive interior angles. You should note that question #3 has none of these relationships.
Exploration #1 and #2
The video narrative explains the two explorations and how they exemplify math practice standards 3 (viable arguments and critiques) and 6 (attend to precison).
Practice with Angles
Teachers can lead students through these application with algebra questions for further practice of using angle relationships given 2 parallel lines cut by a transversal. Question #1 focuses on numerical application, while questions #2-4 focus on utilizing algebra skills. You should be wary of question #3 as most students will find x, and then stop. This is a great chance for you to warn students about this "trap" which is frequently on the SATs as well.
Students will work in small groups or independently to complete the activity if time remains. If time is limited in class this can become a homework assignment.