# Circles

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Our Circles Lesson Plan equips students to define and identify the area, diameter, radius, and circumference of a circle. This lesson includes instruction for the formula to find the area of a circle, as well as a circles of circles activity that leverages peer learning in a fun, meaningful way.  Anchor understanding and application of the concept and formulas with the homework assignment to locate and measure real-world circle objects.  Develop student confidence as they orally communicate the procedure and formula to find the area and circumference of their favorite thing that involves, or includes a circle.

## Circles Lesson Plan Includes:

• Full Teacher Guidelines with Creative Teaching Ideas
• Instructional Content Pages about Circles.
• Hands on homework activities giving students practice on identifying the dimensions of a circles, their parts, how to make a circle, etc.
• Common Core State Standards

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### Description

Our Circles Lesson Plan equips students to define and identify the area, diameter, radius, and circumference of a circle. This lesson includes instruction for the formula to find the area of a circle, as well as a circles of circles activity that leverages peer learning in a fun, meaningful way.  Anchor understanding and application of the concept and formulas with the homework assignment to locate and measure real-world circle objects.  Develop student confidence as they orally communicate the procedure and formula to find the area and circumference of their favorite thing that involves, or includes a circle.

Sample Classroom Procedure / Teacher Instruction

1. Display the circular objects or images and ask students: What do all of these have in common?
2. Allow for responses and discussion. Introduce the area of a circle, and the terms related such as circumference, radius, and diameter. Explain to students that finding the area of a circle is different than finding the area of rectangles.
3. Ask the students if they know what pi means?
4. Allow for responses and discussion. Review pi if necessary.
5. Distribute Circles content pages. Read and review the information with the students. Save the final question for lesson closing. (Remind students that many circular items are actually 3-dimensional, and they will be measuring the tops of items during the lesson.) Use the additional resources to enhance understanding.
6. Distribute the Activity pages. Read and review the instructions. Distribute the supplies. Once completed, review the students’ answers. They should be the same for each circle.
7. Assign groups of students to join and create their circles of circles. Display the circles in the classroom or other area of the school.
8. Distribute the Practice page. Check and review the students’ responses.
9. Distribute the Homework page. The next day allow students to share some of the at-home items and the measurements of the circle. (Responses will vary.)
10. Ask the students the following question: What is your favorite thing in life that involves, or includes a circle? Why?
11. Allow for responses and discussion. Ask the students how they can find the area of that circle and its circumference.
12. Allow the students to orally explain the procedure and formula.

Common Core State Standards: None Listed for Grade Levels

Class Sessions (45 minutes): 1 – 2 class sessions