Lesson Plan: Exterior Angles of a Triangle Mathematics • 8th Grade
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to find the measure of the exterior angle of a triangle and compare between an exterior angle and its corresponding remote interior angles.
Objectives
Students will be able to
- know the definition of an exterior angle of a triangle,
- know the definition of an interior angle of a triangle,
- know that the exterior angles of a triangle sum to ,
- solve problems involving exterior and interior angles of triangles.
Prerequisites
Students should already be familiar with
- the angle sum of a triangle.
Exclusions
Students will not cover
- trigonometry.