All Types of Quadrilaterals

Students use defining attributes to consider relationships between categories of quadrilaterals. Note: Activity 2 was updated in the Student Edition PDF and the Student Edition (Answers) PDF on 1/12/2026.

By Amplify Classroom

Grades: 5th Grade

Subject: Math

Learning goals: Today’s Goals • Classify quadrilaterals in a hierarchy based on angle measurements, side lengths, and the presence of parallel sides. • Language Goal: Use defining attributes to justify whether stated relationships between 2 quadrilaterals are always, sometimes, or never true. (Speaking, Listening, and Writing) Materials Lesson Resources: Activity 1 PDF, Activity 2 PDF (as needed)