Parallel Lines & Transversals (Day 4)

Lesson Prep

Lesson Details

• Duration: 50 minutes

• Learning Goal: Build procedural fluency with using angles formed by transversals to solve problems and provide an opportunity to make free mistakes.

Answer Keys

• Link to Answer Keys

Classwork

• Estimation 180 – Day 112 (Andrew Stadel)

• Warm Up

• Parallelogram Mazes… (Daniel Schneider)

  • Handout

• Spiraling Practice

1:1 Devices Version

• Pear Deck

• Mazes on paper

• GoFormative for Spiraling

Standards

Common Core

• 8.G.A.5 – Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

TEKS

• G.5(A) – investigate patterns to make conjectures about geometric relationships, including angles formed by parallel lines cut by a transversal, criteria required for triangle congruence, special segments of triangles, diagonals of quadrilaterals, interior and exterior angles of polygons, and special segments and angles of circles choosing from a variety of tools

• G.6(A) – verify theorems about angles formed by the intersection of lines and line segments, including vertical angles, and angles formed by parallel lines cut by a transversal and prove equidistance between the endpoints of a segment and points on its perpendicular bisector and apply these relationships to solve problems