Lesson Plan: Types of Triangles: Angles and Sides
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to classify triangles as isosceles, scalene, or equilateral and as acute, right, or obtuse.
Objectives
Students will be able to
- classify triangles as isosceles, scalene, or equilateral and as acute, right, or obtuse,
- classify triangles when all side lengths and angle measures are given,
- classify triangles by measuring the sides and angles,
- classify triangles using the notation for congruent sides.
Prerequisites
Students should already be familiar with
- how to identify perpendicular lines,
- measuring angles in degrees,
- the notation used to show equal sides,
- the measures of acute, right, and obtuse angles.
Exclusions
Students will not cover
- the sum of angles in a triangle.
