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Area of a Circle
In this geometry activity, 10th graders are asked to calculate the area of a circle given the radius of the circle. There is an answer key for these 9 problems.
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Informal Proofs of the Circumference/Area of a Circle
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...
8th - 10th Math CCSS: Designed
New Review Area and Circumference of Circles
Don't go around and around, help your class determine amounts around and in a circle with a video that connects circumference to the perimeter or the distance around an object. The resource includes 14 questions dealing with circles and...
9 mins 8th - 10th Math CCSS: Adaptable
Circumference and Areas of Circles
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. For this circumference lesson, pupils understand how to find the radius, diameter, area of a...
7th - 12th Math CCSS: Adaptable