Lesson plan

Recognize congruent angles formed by parallel lines cut by a transversal by identifying and justifying which angles are congruent

  • Created by:
  • Standards:
  • Tags:
teaches Common Core State Standards CCSS.Math.Content.8.G.A.5 http://corestandards.org/Math/Content/8/G/A/5
Quick assign
Preview assignment >
Print

You have saved this lesson plan!

Here's where you can access your saved items.

Dismiss
Content placeholder

Tip: swipe on touch devices, use your keyboard's ← and → arrow keys, or clicker buttons to quickly navigate the lesson plan

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson plan.

Big Ideas: An informal argument can show the angle relationships of parallel lines cut by a transversal. Equivalence of angles can be represented in many ways. In this lesson, students will develop a sense of the congruent angle relationships formed by parallel lines intersected by a transversal. They will use Patty Paper or tracing paper to copy the bottom intersection and slide and rotate it onto the top to find congruent angles. This lesson builds upon prior knowledge of types of angles and congruence. Students may need to refer back to vertical and supplementary angles, as well as knowledge of translations and rotations. Vocabulary: parallel lines, transversal, intersection, congruent, vertical, supplementary, translation, rotation Special Materials: Handout of Map of Lucy's Walk Home Tracing paper/Patty Paper
Provide feedback