Activity
Texas Instruments

Texas Instruments: Radius, Diameter, and Circumference of a Circle

For Teachers 9th - 10th
In this activity, students will learn the basic concepts of the circle. They explore the relationship between the diameter and the radius, and between the diameter and circumference of a circle. They also get familiar with the Greek...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Circle Exercises

For Students 9th - 10th
Twenty-five problems cover various circle activities. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to check each step of your...
Unknown Type
Houghton Mifflin Harcourt

Holt, Rinehart and Winston: Homework Help Independent Practice: Circles

For Students 6th - 8th Standards
Get independent practice working with finding the circumference, area and radius of circles. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Diameter or Radius of a Circle Given Circumference

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson, students find the radius, diameter, and circumference of different circles. Students examine guided notes, review guided practice, watch...
Website
PBS

Pbs Learning Media: Finding the Circle's Center

For Students 3rd - 5th
In this video segment [3:10] from Cyberchase, the CyberSquad must find the exact center of a circle in order to save Motherboard.
eBook
AAA Math

Aaa Math: Circumference of a Circle

For Students 9th - 10th Standards
Calculating the circumference or perimeter of a circle has gotten easier with this formula and practice for finding the circumference.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Radius or Diameter of a Circle Given Area

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Find the radius or diameter of a circle given its area.
Activity
Discovery Education

Discovery Education: Web Math: Find Out Things About Circles

For Students 9th - 10th Standards
This WebMath site will assist with finding the radius, diameter, circumference, and area of a circle.
Lesson Plan
Alabama Learning Exchange

Alex: Talking in Circles

For Teachers 3rd - 5th
The students will identify parts of the circle including center, radius, diameter, chord, and arc. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
Graphic
Math2

Math2: Circles

For Students 9th - 10th Standards
This site has many useful formulas and examples relating to circles, including related definitions, circumference of a circle, area of a circle, length of a circular arc, area of a circular sector, equation of a circle in cartesian...
Activity
Other

Ic Teachers: Shapes, Circles (Basic)

For Students 5th - 9th Standards
This basic website will give you lots of information about circles. There are also some questions to test your circle knowledge.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Parts of Circles

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students the vocabulary for the parts of circles, including lines passing through circles.
Unknown Type
Mr. Martini's Classroom

Mr. Martini's Classroom: Circles Geometry Review

For Students 3rd - 8th Standards
This resource provides two levels of multiple choice questions to review the parts of a circle as well as area and perimeter.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Radius or Diameter of a Circle Given Area

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Find the radius or diameter of a circle given the area of the circle
Unit Plan
Khan Academy

Khan Academy: Radius and Diameter

For Students 6th - 8th
Practice finding the radius and diameter of a circle using both vocabulary and visuals. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch instructional videos...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch instructional videos...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Circle Circumference

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the circumference of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Circle Circumference

For Students 6th - 9th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the circumference of a circle given its diameter or radius. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given its radius or diameter. Students examine guided notes, review guided practice, watch instructional videos and...
eBook
Math Planet

Math Planet: Calculating the Circumference of a Circle

For Students 6th - 9th Standards
Gain an understanding of how to find the diameter of a circle by viewing an example and a video lesson. [1:01]
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area of circles and the area of sectors of circles by using given information and formulas. Students examine guided notes,...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate the area of a circle. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Areas of Combined Figures Involving Circles

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find areas of combined figures involving circles. Students examine guided notes, review guided practice, watch instructional videos and...

Other popular searches