## Overview

**Learning Intentions (Objectives)**

- Students will use the Pythagorean Theorem to classify triangles. You will also discuss properties of different types of triangles (acute, obtuse, isosceles, equilateral).
- Students will prove the Triangle Inequality Theorem.

### Standards Addressed in the Lesson

##### California Common Core State Standards for Mathematics

### Lesson Components

- Explore
- Watch (Triangle Inequality)
- Watch (Classifying Triangles)
- Try This! (Classifying Triangles)
- Watch (Triangle Sum Theorem)
- Practice
- Watch