9/6 8th Grade Period 6

Date: 9/6

Essential Question: how do I find missing angles of triangles?
Opening: What are exterior and interior angles?
Work Session: Missing Angle Jeopardy
Closing: Ticket Out The Door

Vocabulary: exterior angles, interior angles,

Standard: 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.

Homework:

1. 9 + -3 + -9

2. ½ + - 3/6

3. 9% of $21.35

4. 12% of $4.99

5. -1/3 + 2/5