Grade 3 · Math · Lesson 26

Classify Triangles and Quadrilaterals

Triangles and quadrilaterals can be sorted into different types based on their side lengths and angles. Knowing the properties of each type helps us identify and name them correctly.

What this lesson teaches

Free · 7 lessons by email

Try the curriculum — one lesson per subject.

Pick your grade. We'll send you one free lesson from each of the 7 subjects, over 7 days. No account, no credit card.

One email a day for 7 days. Unsubscribe anytime.

Already convinced? See full membership plans →

This is a preview of Grade 3 Math Lesson 26: Classify Triangles and Quadrilaterals. Subscribe to Homeschool Education Academy to access the full lesson.