Lesson 6 Compare and Describe Angles

    • Let’s think about how to compare and describe angles.

Warm-up Which One Doesn’t Belong: Angles

Which one doesn’t belong?

  1. angle formed by two lines that meet at a point
  2. an angle formed by two intersecting rays pointing downward that meet at a point
  3. angle formed by two lines
  4. an angle formed by two intersecting rays that meet at a point

Activity 1 Card Sort: Angles

Your teacher will give you a set of cards with angles on them.

  • Sort the angles into 3 or more categories and in a way that makes sense to you.

  • Record your sorted angles here. Write words or phrases to describe each category. Be prepared to explain how you sorted the angles.

Activity 2 Order Angles

You will need cards A–P from an earlier activity.

Order the angles on the cards from smallest to largest.

Record your ordered angles. Explain or show how you decided which angle was the smallest and which was the largest.

Practice Problem

Problem 1

A
angle formed by two rays
B
angle formed by two rays

  1. Write two statements that compare the size of angles A and B.

  2. Draw an angle C that is bigger than both angle A and angle B.