Area of a Circle Teacher Resources

Find Area of a Circle lesson plans and worksheets
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Lesson Planet

Know and Use the Formulas for Area and Circumference of a Circle (7.G.B.4)

For Teachers 6th - 8th Standards
Practice with the formulas for circumference and area of a circle. Videos each work with a specific area and the last video challenges them to work backwards when given the area.
EngageNY

EngageNY Grade 7 Math Module 3: Expressions and Equations

For Teachers 7th Standards
A math module challenges young mathematicians to generate equivalent expressions.  Scholars demonstrate how order or grouping does not affect the practice of addition and multiplication. By the end of the module, learners recognize and...
9 Items in Collection
Lesson Planet

Grade 7, Claim 1: Concepts and Procedures Item Slide Shows

For Teachers 7th Standards
Prepare seventh graders for end-of-year assessments with a collection of nine resources packed with teacher and student-friendly slides featuring problems that address the A-I competencies. Questions are modeled after Smarter Balanced...
4:02
Lesson Planet

Area of a Circle

For Students 7th - 10th
A second installment in a series on circles, this production demonstrates the process of finding the area of a circle. As an introductory tool, it is effective. However, it does not explain the reasoning behind the formula because that...
Lesson Planet

Measuring the Area of a Circle

For Teachers 6th - 8th Standards
When mathematical errors happen, part of the learning is to figure out how it affects the rest of your calculations. The activity has your mathematicians solving for the area of a circular pipe and taking into consideration any errors...
1 In 1 Collection
EngageNY

The Area of a Circle

For Teachers 7th Standards
Introduce learners to two methods to estimate the formula for the area of a circle. The first method uses sector of a circle to form a rectangle and the other uses grids to estimate the area. The problems in the 18th segment of a 28-part...
1:54
Lesson Planet

Calculating Area of a Circle: Lesson

For Students 6th - 11th Standards
It really is as easy as pi. The segment of a massive geometry playlist points out that the formula for the area of a circle is a relatively simple one. Using the formula, the presenter shows examples of finding the area of circles.
4:18
Lesson Planet

Area of a Circle

For Students 6th - 12th Standards
Circle back and use the resource to review area. Young pupils see how to find the area of a circle given its radius or diameter. The instructive video also shows an example of how to find the radius given the area.
3:19
Lesson Planet

How Do You Find the Area of a Circle if You Know the Radius?

For Teachers 6th - 8th
There are basically two things you need to know to find the area of a circle. First, you need to use the correct formula. Second, you have to know the value of the radius. If you know these two things then all you have to do is plug the...
Lesson Planet

Discovering the Area Formula for Circles—Apple Pi

For Teachers 6th - 8th Standards
Need an activity that brings your class' understanding of the area formula full circle? The second installment in a two-part series involving geometric calculations further develops the young mathematician's measurement, approximation,...
Lesson Planet

Area of a Circle When Radius is Given

For Students 5th - 8th
Five problems provide practice for learners to find the area of a circle given the distance of the radius. Answers on the key use pi as a variable and do not include fully computed numeric answers. To reinforce basic multiplication facts...
Lesson Planet

Eight Circles

For Teachers 6th - 9th Standards
We are used to finding the area of a circle by plugging the radius into an equation. Here, learners are required to go further to find multiple areas and calculate the difference. They must detect a pattern in order to figure out the...
Lesson Planet

Informal Proofs of the Circumference/Area of a Circle

For Teachers 8th - 10th Standards
Use this lesson plan to help your geometers develop informal proofs of the circumference and area of a circle. Working in small groups, students rotate between three stations to complete hands-on activities that illustrate the...
Lesson Planet

The Cover Up, Part II (Area of a Circle)

For Teachers 9th - 10th
Students calculate the area of a circle. In this geometry instructional activity, students discuss the area and relationship of a circle to the unit circle. They derive trigonometric values using the unit circle.
Lesson Planet

Quiz: Area of a Circle

For Students 7th - Higher Ed
Geometers test their mastery at finding the area of a circle with 10 basic problems. Circle diagrams show line segments, points, and diameter. Distance of radii are given. They use pi as 3.14 to calculate the area. No answer key is...
Lesson Planet

Calculate Area Using Pi

For Students 7th - 9th
Geometers find the area of four circles given their circumferences. Circumference is presented in the form of "numeral (diameter) x pi"; the answer key shows solutions as  "numeral (radius squared) x pi," so computation is limited to...
1 In 1 Collection
EngageNY

Area Problems with Circular Regions

For Students 7th Standards
Uncover strategies for finding areas of composite figures. The 23rd lesson in a 29-part module has young mathematicians decompose figures to find total area. Figures decompose to rectangles and circular regions.
Lesson Planet

Discovering the Formulas for Circumference and Area of a Circle

For Teachers 9th - 12th Standards
Find formulas using direct measurements and reconstruction. Groups use diagrams of circles and measure their circumferences. With several examples, classmates determine the constant of variation, pi. Pupils continue exploring circle...
Lesson Planet

Area of a Circle

For Teachers 9th - 12th
Students explore the area of a circle.  In this area of a circle lesson, students construct a circle and find the length of its' radius.  Students plot the length of the radius v. area of the circle of their circle with varying radius...
Lesson Planet

Finding Circumference and Area of a Circle

For Teachers 7th
Young geometers explore the concept of circumference and area of circles. They discuss what information is needed to find circumference and area. The resource employs several instructional methods: Frayer Model for Vocabulary, literature...
Lesson Planet

Measuring Circles

For Teachers 5th - 12th
Students discover the area of circles. In this circles lesson, students work to find the circumference and diameter of a circle. Students compare the relation of the area of a circle to a square.
Lesson Planet

Circumference and Areas of Circles

For Teachers 7th - 12th Standards
Middle and high schoolers listen to a scenario about a puppy and use the scenario to develop formulas in order to find the area of a circle. In this circumference activity, pupils understand how to find the radius, diameter, area of a...
Lesson Planet

The Area of a Circle

For Teachers 8th
Eighth graders find the circumference and diameter of several lids, show the relationship of the two measurements and derive the formula for finding the area of a circle. In this area of a circle lesson plan, 8th graders find...
Lesson Planet

Area of a Circle

For Students 4th - 6th
In this area of a circle worksheet, students solve 5 fill in the blank and 2 word problems where they are given either the radius or diameter of a circle and must use the area formula to calculate the correct area. An example with the...

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Area of a Circle