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Worksheet
Curated OER

The Two Circles Problem

For Students 11th - Higher Ed
In this area of a circle worksheet, students determine the ratio of common area when two circles overlap and each passes through the center of the other. A detailed sollution is included.
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Worksheet
Curated OER

Finding The Area

For Students 9th - 11th
In this geometry worksheet, students calculate the area of a given shape. They use the formulas for squares and circles to help them find the area. There are 2 questions with an answer key.
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Worksheet
Curated OER

Geometry Worksheet: Area (4)

For Students 7th - 9th
In this geometry worksheet, students calculate the shaded area of given shapes.  They determine the area around a circle, a portion of a rectangle, and composite figures.  THis one-page worksheet contains two multi-step problems. ...
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Interactive
Curated OER

Online Math Learning: Surface Area of Spheres

For Students 9th - 12th
In this surface area of spheres worksheet, learners solve 4 short answer problems. Students find the surface area of spheres, hemispheres, and cones given a radius or a radius and height.
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Activity
101 Questions

Apple Mothership

For Teachers 9th - 12th Standards
Explore Apple's spaceship office building. Built in the shape of a circle, the office building offers a unique floor plan challenge. Young scholars use the dimensions of the building to estimate the square footage for each employee. 
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Lesson Plan
Alabama Learning Exchange

How Big Can a Bee Be?

For Teachers 7th - 10th Standards
Mathematicians analyze the relationships between surface area and volume. They conduct Internet research, conduct various experiments, record the data in a spreadsheet, and graph the results and compare the rate of increase of surface...
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Worksheet
Curated OER

Circumference and Area

For Students 6th
In this circumference and area activity, 6th graders find the circumference and area of circles when the diameter is given. Students complete 9 problems.
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Lesson Plan
Curated OER

Finding PI

For Teachers 9th - 12th
Students select and use appropriate operations, methods and tools to compute or estimate using whole numbers. They develop and use formulas for determining the circumference and area of circles. Students determine and describe the...
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Worksheet
Curated OER

Chapter 8 Worksheet 3 Circumference & Area

For Students 8th - 12th
In this circumference and area worksheet, students determine the circumference and area of given circles. They find the area of shaded regions of circles and areas around circles. This two-page worksheet contains 18 multi-step problems.
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Lesson Plan
Curated OER

Lesson 9-3 Practice B: Composite Figures

For Teachers 9th - 12th
In this composite figures worksheet, young scholars solve 11 short answer problems. Students find the area of figures composed of various polygons. Young scholars find the area of each figure given a sketch of the figure with various...
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Organizer
Curated OER

Area, Perimeter, Volume Formulas

For Students 9th - 10th
In this formulas worksheet, students write the area, perimeter, and volume formulas of 17 2D and 3D polygons.  Students list properties of various types of triangles and the metric conversions for metric units.
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Lesson Plan
Curated OER

Dan's Badge

For Teachers 8th - 12th
Learners solve a math problem using area formulas of circles and squares. They read and discuss the problem, analyze images of badges, reconstruct the badge from the problem using circles and rulers, and share the solution with the class.
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Lesson Plan
Virginia Department of Education

Going the Distance

For Teachers 6th Standards
Estimate the value of one of the most famous irrational numbers. The hands-on lesson plan instructs classmates to measure the circumference and diameters of circles using yarn. The ratio of these quantities defines pi.
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Instructional Video15:48
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Flipped Math

Sectors and Segments

For Students 9th - 12th Standards
It's a piece of pizza! Pupils learn about a sector of a circle as a slice of the circle and determine how to find its area. Scholars continue to find out how to calculate the segment of a circle based on the sector's area. At the end,...
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Performance
Radford University

Pizza Sector Task

For Teachers 9th - 12th Standards
Gobble up a slice of the task. Scholars first consider the area of a whole pizza, half a pizza, and a quarter of a pizza. They then consider other central angles and develop a formula for the area of any sector of a circle.
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Interactive
CK-12 Foundation

Volume by Disks: The Vase Case

For Students 11th - Higher Ed
Finding the volume is an integral characteristic of a vase. Using the idea that summing the areas of cross-sectional disks will calculate the volume of a rotational solid, pupils find the volume of a vase. Scholars determine the interval...
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Worksheet
Math Mammoth

Circle

For Students 7th - 8th
For this circle worksheet, students find the area and circumference of circles and compare their size using percents. Students determine the are of composite figures made of circles and rectangles. This one-page worksheet contains six...
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Lesson Plan
Curated OER

Surface area of a cylinder

For Teachers 6th - 7th
Students construct a cylinder made of paper with detachable bases. Then they are taught the formulas for finding the area of a curved surface and the total surface area of a cylinder. A great hands-on approach!
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Worksheet
Curated OER

Geometry: Calculating the Area of a Circle

For Students 7th - 9th
In this area worksheet, students use the perimeter or radius to determine the area of a circle. This one-page worksheet contains 8 problems. This worksheet may be produced in printed form. Answers may be viewed on-line.
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Worksheet
Curated OER

Easy Worksheet: Area and Circumference of Circles

For Students 9th - 12th
In this area and circumference of circles worksheet, students solve 4 graphing problems. Students graph a circle given an endpoint and center. Students find the area or circumference of the circle they graphed.
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Worksheet
Curated OER

Circles - Word Problems

For Students 6th - 7th
In this geometry problem solving worksheet, students answer 8 words problems based on their knowledge of circles, circumference, radius, diameter, and perimeters. They show their work on the sheet between problems.
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Lesson Plan
Curated OER

The Geometry of Circles

For Teachers 6th - 12th
Learners review the parts of a circle, calculate the circumference and area of a circle, and create student-made tests on the geometry of circles using educational software.
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Lesson Plan
Curated OER

Parachutes, Circles and Pi...Oh My!

For Teachers 6th - 7th
Learners explore different size circles to discover the relationship between diameter and circumference. In this circles and Pi lesson, students construct simple parachutes using circle patterns of varying sizes. Learners predict the...
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Lesson Plan
Curated OER

Explora-Pond: Surface Area

For Teachers 4th - 6th
Learners estimate the surface area of a pond using ratios and chance methods of estimation. They gain insight into how well estimations based on chance outcomes match the average of a maximum area estimation and a minimum area estimation.

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