# Ch 4: Pi & Circles Lesson Plans

### About This Chapter

## Pi & Circles Lesson Plans - Chapter Summary

The lesson plans in this chapter are designed to strengthen your curriculum and streamline the lesson planning process as you prepare to teach your students about pi and circles. These lesson plans offer instructional strategies, learning objectives, discussion and activity ideas and other resources that can help you create fun and informative lessons. Topics covered include:

- The basics of pi
- Circumference and area of a circle
- Radius and diameter
- Unit circles

Each lesson plan is accompanied by at least one supplemental lesson you can share with your students to help them to better understand pi and circles. Multiple-choice quizzes with the lessons can test their comprehension of the information you present.

## How It Helps

**Learning objectives:**Details the knowledge students will have gained after completing the lessons you've developed using these lesson plans.**Meets learning standards:**Provides an outline for teaching pi and circle concepts that can help your students meet education standards.**Student engagement:**Offers discussion and activity ideas you can incorporate into your lessons to increase your students' interactions and keep them engaged.

## How It Works

This helpful resource offers teachers lesson plan outlines with relevant tools to make planning pi and circles lessons easy.

- Find lesson plans for the specific pi and circles topics you want to cover in class.
- Formulate your pi and circles class outline using the suggested classroom tools offered in the lesson plans.
- Share the related pi and circles lessons for each lesson plan with students in class to make learning fun and engaging.
- Use related lesson quizzes to ensure your students understand the most important pi and circles concepts from the lessons.
- Engage your students with relevant pi and circles-related activities, discussion questions or other materials found in the lesson plan outline.

### 1. Pi Lesson Plan

What is pi and how can it be used to simplify calculations? This lesson plan begins with an engaging video lesson to explain key facts. A fun activity gives students a chance to demonstrate understanding as they fill their tummies.

### 2. What Is Pi? - Number & Usage

Pi is very useful to mathematicians, especially in finding the circumference or area of a circle. Explore the definition of pi, the number and approximations of pi, the uses of it, and an example of using pi.

### 3. Area & Circumference of a Circle Lesson Plan

Use this lesson plan to introduce your students to the area and circumference of circles. Students will watch a video lesson, discuss area and circumference, work through a few practice problems, and determine the area and circumference of circles in the real world.

### 4. Circles: Area and Circumference

Like all geometric shapes, circles take up space and a formula is required to calculate the area. Learn about the area and circumference of circles, explore the formula to calculate a circle's area, and review examples that use the diameter and others that use the circumference to find the area of a circle.

### 5. Circumference Games & Activities

Learning about circumferences doesn't have to be simply solving equations. Check out a few of these games and activities which make learning about circumferences fun.

### 6. Diameter & Radius Lesson Plan

How is the diameter and radius of a circle determined? This lesson plan uses both text and video lessons to define each term and outline formulas for performing the calculations. A fun activity gives students practice with the formulas.

### 7. Finding the Radius: Formula & Concept

In some problems, the radius is easy to spot, but in others, the radius requires the use of some formulas. Learn how the formulas for circumference and area can help you in figuring out the radius of a circle or sphere.

### 8. What is Diameter? - Definition & Formula

The measure between the opposing edges of a circle is its diameter. Master the formulas in diameter, and the relationship between similarly important measurements (radius and circumference) using algebraic examples.

### 9. Reference Angles & the Unit Circle

Unit circles are those with a radius of 1, which have reference angles that are each angle's cosine and sine. Learn about the concepts of reference angles and unit circles in detail through example problems demonstrating how each is used.

### 10. Arc Length & Sector Area Activities

Teaching students to calculate the length of an arc and find the area of a sector is one of the first steps towards understanding calculus. The activities in this lesson will get your students moving in the right mathematical direction.

### 11. Circular Arcs & Circles Activities for High School Geometry

Teaching students how circles work and what circular arcs are will increase their level of sophistication within geometry. This lesson offers activities that will help you teach circles and circular arcs.

### 12. Unit Circle Lesson Plan

Do you feel like you're circling the drain with your instruction on unit circles? Study.com helps you simplify your instruction with a video lesson featuring built-in problems to challenge and instruct your students. A simple in-class activity solidifies understanding. To keep the instruction moving forward, why not try our suggestions for related lessons and supplementary activities?

### 13. Unit Circle Project Ideas

Are you completing a unit on unit circles? The projects offered here will allow your high school students the opportunity to show you all they have learned about unit circles. These projects are hands-on and creative.

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### Other Chapters

Other chapters within the Geometry Resources & Lesson Plans course