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Interactive
Curated OER

Ten Multiple-Choice Circle Problems

For Students 9th - 10th
In this circle worksheet, students solve ten multiple-choice questions concerned with the area, radius, diameter, and circumference of a circle.  The solutions are provided by clicking on the "show answers" button on the bottom of...
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Worksheet
Curated OER

Circumference of Circle

For Students 4th - 6th
In this circumference activity, students find circumference. Radius and diameter are given, as well as an answer key. Workspace is provided.
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Worksheet
Curated OER

Circumference

For Students 8th - 12th
In this circumference worksheet, students calculate the circumference of circles with equations including pie and measurements. Students complete 5 problems.
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Lesson Plan
Curated OER

Area and Circumference of Circles

For Teachers 8th
Eighth graders find the area and circumference of circles. For this area and circumference of circles lesson plan, 8th graders follow a step by step lesson and then demonstrate the skills on their own with circles they are given.
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Lesson Plan
Curated OER

Perimeter and Circumference

For Teachers 5th - 8th
Students consider perimeter and circumference. In this lesson plan on perimeter, students will determine relationships between perimeter and circumference using real life examples.
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Lesson Plan
Curated OER

Don't Burst My Bubble

For Teachers 6th - 8th
Students practice using measuring techniques by examining bubbles.  In this geometry lesson, students utilize mathematic formulas to discover the circumference and diameter of soap bubbles they blow.  Students practice creating...
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Lesson Plan
Curated OER

Around the World

For Teachers 6th - 8th
Students find the circumference of various round objects.  In this finding the circumference of various round objects lesson, students find the circumference of the Earth.  Students find the circumference of trees, tires, and...
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Lesson Plan
Curated OER

Discovering Pi

For Teachers 6th
Sixth graders discover Pi.  In this discovering Pi lesson plan, 6th graders measure the diameter and circumference of various circular objects.  Students record their measurements in a table.  Students discuss how Pi...
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Worksheet
Curated OER

Perimeter, Circumference, Volume, and Surface Area

For Students 8th - 11th
For this Perimeter, Circumference, Volume, and Surface Area worksheet, students are asked to identify geometric formulas and calculate for volume and surface area for geometric solids.  In addition, students are asked to identify...
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Lesson Plan
Curated OER

Circumference, Diameter, Radius

For Teachers 6th
Sixth graders will determine the circumference, diameter, and radius of a circle. In this circle lesson plan, 6th graders will measure the appropriate amount to find these measurements on circles.
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Lesson Plan
Curated OER

Algebra/Geometry Institute: Area, Circumference, Perimeter

For Teachers 7th - 9th
Students solve area problems.  In this area, circumference, and perimeter instructional activity, students solve area and perimeter problems using standard and metric units of measure.  They identify the best customary unit of...
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Lesson Plan
Curated OER

Radius, Diameter and Circumference

For Teachers 8th - 10th
In this circle worksheet, students use a drawing of a circle. The diameter is given. Students find the radius, circumference and area of the circle. On the second problem, students are shown a circle with a hole inside it. They compute...
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Lesson Plan
Curated OER

Circle Relationships

For Teachers 8th - 10th
Students explore circles.  In this geometry lesson plan, students explore the relationship between the circumference of a circle, the distance a ball travels, and the number of rotations the ball must make in order to travel a...
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Worksheet
Curated OER

Blank Circles

For Students 5th - 8th
In this circles instructional activity, learners complete the radius, diameter, and circumference for each circle with one answer given to them. Students complete 4 problems.
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Worksheet
Curated OER

Circles Area Perimeter and Circumference

For Students 5th - 6th
In this circles worksheet, learners calculate to find the area, radius, circumference and perimeter of circles. A reference web site is given for additional activities.
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Worksheet
Curated OER

Circle Area, Perimeter and Circumference

For Students 6th - 8th
In this area, perimeter, and circumference worksheet, students 7 questions that require them to fill in 7 blank circles with the information they are provided and calculate the desired answers.
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Lesson Plan
Curated OER

Circumference of a Pumpkin

For Teachers 4th
Fourth graders watch a video and find the circumference of a pumpkin. In this circumference instructional activity, 4th graders watch a video to help them find the circumference of their pumpkins. Students define the word circumference...
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Lesson Plan
Alabama Learning Exchange

It's Around There Somewhere! Perimeter, and Circumference

For Teachers 6th - 8th Standards
Explore the concept of building equations for perimeter and circumference. Learners use rulers to measure the perimeter of half a sheet of paper.  Then fold the sheet of paper numerous times, each time measuring perimeter. ...
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Lesson Plan
Curated OER

Understanding Pi.

For Teachers 8th - 9th
Students study the relationship between circumference and diameter to come up with Pi. "In this pi lesson, students measure, record and find the ratio "circumference/diameter" and their average which is an approximation of pi.
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Worksheet
Curated OER

Solving Problems

For Students 10th - 12th
In this solving problems worksheet, students determine the area of a rectangle inscribed in a circle. They estimate distance between given planets. This two-page worksheet contains 2 multi-step problems.
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Worksheet
Curated OER

Circles: Circumference and Area

For Students 8th - 11th
In this circle worksheet, students calculate the circumference and area of given circles. They determine the perimeter of a shaded area, and give explanations to support problems. This two-page worksheet contains 3 multi-step problems.
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Lesson Plan
Curated OER

The Surface Area of a Cylinder

For Teachers 5th - 6th
Students measure the circumference of a cylinder. In this cylinder lesson plan, students use round container lids and flexible rectangles to measure the circumference of the cylinder. They put the shapes together to make their own...
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Worksheet
Curated OER

Measuring Angles

For Students 10th
In this measuring angles worksheet, 10th graders solve and complete 26 various types of problems. First, they use a protractor to find the measurement of each angle. Then, students state the Angle Addition Postulate for the three angles...
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Worksheet
Curated OER

11.4 Practice B: Circumference and Arc Length

For Students 9th - 12th
In this circumference and arc length worksheet, students determine the circumference, radius, and arc length of circles. They find the area of a shaded region within a circle. Students determine the probability that a randomly chosen...