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150 resources with the concept area of circles

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...
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Circle Around

For Teachers 7th - 8th
Learners investigate circles.  In this middle school geometry lesson, students determine the circumference and area of circles.  Additionally, learners investigate the mathematics of a target and examine the areas of the different rings...
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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...
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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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NUMB3RS Activity: Meltdown

For Teachers 9th - 12th
Students investigate the relationship between the radius and area of circles that change size over time. They identify and interpret the puddle at a crime scene, that it is certain to be irregularly shaped and the floor would be neither...
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Area of Circles

For Teachers 9th - 12th Standards
Students explore circles. In this algebra/geometry lesson, students discover the formula for the area of a circle, as they investigate the ratio of the area of a circle to the radius^2.
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MCC - 1106 Word Search

For Students 9th - 10th
Use this geometry worksheet to have learners locate and identify various vocabulary terms related to mathematics. There are seven words/phrases located in the puzzle.
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Skills Practice: Area of Circles

For Students 7th - 8th
Two practice pages with 10 problems each show circles and give their radii. Learners calculate the area. Answers are provided. 
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Word Problems that involve Circles

For Students 9th - 12th
In this online math learning exercise, high schoolers solve word problems the involve circles. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching...
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Area of Circle Worksheets

For Students 10th
In this geometry worksheet, 10th graders calculate the area of circle give either the radius or the diameter. The one page interactive worksheet contains ten questions. Answers and  hints are included. 
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Area of Shaded Regions that involve Circles

For Students 9th - 12th
In this online math worksheet, students determine the area of shaded regions within a circle. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching...
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Circle Problems - Radius, Diameter, Circumference and Area

For Students 9th - 12th
In this online math learning exercise, high schoolers determine the radius, circumference, diameter and area of circles. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
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Pushing Pivots

For Teachers 8th - 10th
Students calculate the area and diameter length of a circle. In this geometry lesson plan, students investigate the use of pivots as they review parts of a circle. They create a circle using cardboard and label all the parts.
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The Cover Up, Part II (Area of a Circle)

For Teachers 9th - 10th
Students calculate the area of a circle. In this geometry lesson, students discuss the area and relationship of a circle to the unit circle. They derive trigonometric values using the unit circle.
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The Capacity of Planets

For Teachers 10th
Tenth graders change numbers written in standard form to scientific notation. In this scientific notation lesson, 10th graders use given diameters and distances from the sun for each planet in our solar system. After rewriting each of...
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The Two Circles Problem

For Students 11th - Higher Ed
In this area of a circle learning exercise, 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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Wiggly Paths

For Teachers 9th - 12th
Students find the area of a path.  For this finding area of a path lesson, students use knowledge of area formulas to find the area a path covers.  Students use given distances and area of circles formulas to determine the area of the...
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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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Application of a Circle - Angles and Arcs

For Teachers 9th - 12th
Students explore the concept of circles.  In this circles lesson, students determine the relationships between angle measures and arcs of various angles within a circle.  Students use their Ti-Nspire to construct a circle and find the...
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Geometric Probablitiy: Spinners and Dartboards

For Teachers 8th - 10th
Sstudents explore and analyze the properties of geometric areas.  In this geometry lesson, sstudents use technology to simulate spinners and dartboards in order to fing areas of circles and sectors of circles and compare and contrast...
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Circumference and Area of Circles

For Students 10th
In this circles worksheet, 10th graders solve and complete 17 different problems that include various circle dimensions to measure. First, they find the circumference and area of each circle shown to the nearest tenth. Then, students...
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Circles

For Teachers 5th - 6th
In this math worksheet, students solve 14 problems in which they calculate the diameter, radius, circumference and area of circles. There are no examples or formulas provided on this page; prior knowledge is assumed.
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Finding PI

For Teachers 9th - 12th
Young scholars 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...
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The Goat Problem

For Teachers 8th - 9th
Students solve a real world problem about area.  In this solving a real world problem about area lesson, students solve an area problem about goats.  Students determine the area of grass a goat on a 3 meter chain can eat.  Students...