Angles with Circles

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This informational lesson begins with a review of angles. Then the lesson introduces the concept that angles can be measured using circles. The names of several types of angles are included with illustrations and descriptions, such as acute and obtuse.

Angles with Circles Lesson Plan Includes:

  • Full Teacher Guidelines with Creative Teaching Ideas
  • Instructional Content Pages about Angles with Circles
  • Hands on homework activities giving students practice on identifying Angles with Circles
  • Answer Keys
  • Common Core State Standards
  • Many Additional Links and Resources
  • Built for Grades 4-5 but can be adapted for other grade levels.

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Description

This informational lesson begins with a review of angles. Then the lesson introduces the concept that angles can be measured using circles. The names of several types of angles are included with illustrations and descriptions, such as acute and obtuse.

Sample Classroom Procedure / Teacher Instruction: 

  1. Begin by explaining to students that they can draw an angle inside of a circle. Show various examples of angles from the center point.  Allow students to draw their own angle inside a circle on a sheet of paper.
  2. While reading the content pages, reinforce vocabulary and give students additional examples of angles in order to help them practice the new material. Use the additional resources to enhance understanding.
  3. Introduce the notes on angles with circles. Have students practice problems drawing and naming angles.  Use the additional resources to enhance understanding.
  4. Have students practice problems as a class.
  5. Follow Activity page with students. Have students work individually with their angle explorer and in pairs for working with clock times.
  6. Distribute Practice page. Check and review the students’ responses as a class.
  7. Distribute the Homework page. Have students work a few problems at the beginning of the next class to reinforce the new material.
  8. In closing, ask students to think of other places they have seen angles and circles together.
  9. Allow for responses and discussion.

Common Core State Standards:

None for Grade 3

CCSS.Math.Content.4.MD.C.5.A

Class Sessions (45 minutes): 1 class session

Additional Resources:

Many more teacher resources in Download!

Want more math resources? Check out our other Math Lesson Plans!

Additional information

Grade Level

4th Grade, 5th Grade

Subject

Math