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Lesson Plan
Curated OER

Small Angle Calculations

For Teachers 4th - 7th
Students work with circles, angles and estimating angles in the night sky. In this circles and angles lesson, students practice measuring a degree using the circumference of a circle and apply the degree to determine a way to use their...
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Lesson Plan
Curated OER

Area Of A Circle

For Teachers 8th - 12th
Students investigate the concept of area and how it can be applied to a circle. They use the right formula in order to solve different problems. The teacher leads the class through different examples and serves as a resource during...
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Worksheet
Curated OER

Circles

For Students 7th
In this circles worksheet, 7th graders identify and complete 6 different problems that include determining various parts of a circle. First, they identify and define each circle term listed on the left. Then, students color each term...
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Worksheet
Curated OER

Discovering PI

For Students 7th - 8th
In this pi worksheet, students identify and complete 4 different problems that include pi and graphing data points. First, they complete the chart at the top by measuring the diameter and circumference of each object. Then, students plot...
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Worksheet
Curated OER

Sir Cumference and the First Round Table

For Students 5th - 6th
In this circumference worksheet, students solve and complete 5 different figures illustrated on the sheet. First, they cut out each shape found on the bottom. Then, students use the shapes on the left as clues to create the corresponding...
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Organizer
Curated OER

Scale Model of the Solar System

For Students 7th - 10th
Lead your class through the procedure to create a scale model of the solar system. This resource reinforces concepts of scale and the mathematics involved, as well as the planets. Attach paperclips and staples to index cards to show the...
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Lesson Plan
Curated OER

Discovering Pi

For Teachers 6th
Sixth graders measure circumference and diameter to the nearest eighth of an inch, record measurements on a spreadsheet, and use the internet to complete a "scavenger hunt" of facts concerning pi.
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Interactive
Curated OER

Cylinders

For Students 7th - 9th
In this online worksheet, students use pie to calculate the area and volume to the nearest tenth. The radius, diameter, and or height are provided.
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Worksheet
Curated OER

Area Of Circles

For Students 4th - 8th
In this math worksheet, students complete 12 problems where they find the radius and the area of circles. Examples are given in this well-designed worksheet.
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Worksheet
Curated OER

Circles Terminology Multiple Choice

For Students 9th - 12th
In this circles activity, high schoolers solve 10 multiple choice problems. Students answer questions about diameter and chord relationships, tangent lines to a circle, circumference, the Pi relationship, etc.
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Worksheet
Curated OER

Formulas Homework

For Students 9th - 12th
In this circle formulas worksheet, high schoolers solve 20 fill in the blank problems. Students find the radius, diameter, circumference, area, arc length, and sector area of a circle.
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Worksheet
Curated OER

Spheres Homework

For Students 8th - 10th
In this spheres worksheet, students determine the volume and area of spheres when given the diameter or radius.  This one-page worksheet contains 10 multi-step problems.
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Lesson Plan
Curated OER

Labs from YSI 95: Telescopes

For Teachers 4th - 5th
Students build a telescope and give quantification of its magnification and field of view while making observations regarding images. In this telescope lesson, students use a simple lens to project a scene and examine various telescope...
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Worksheet
Curated OER

Giant Clock, Bug Speed

For Students 9th - 12th
In this problem solving worksheet, students solve 1 short answer word problem. Students determine the speed of a bug sitting on the end of minute hand on the Allen Bradley Clock Tower.
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Worksheet
Curated OER

Algebra II - Lesson 10-3: Circles

For Students 9th - 12th
In this equations of circles activity, students solve 4 short answer problems. Students find an equation of a circle given the center and radius.
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Lesson Plan
Curated OER

Don't Be a Square

For Teachers 4th - 6th
Young scholars analyze the relationship between radius and diameter.  Students read Sir Cumference and the First Round Table then take measurements of circular items from around the room.  Young scholars compute the radius, diameter and...
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Worksheet
Curated OER

Semicircles

For Students 10th
In this geometry worksheet, 10th graders are presented with a problem involving semicircles.  The diagram appears simple, though it turns out to have a many segments to be labeled with variables.  The key to solving the problem is...
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Worksheet
Curated OER

Calculate the Circumference

For Students 7th
In this calculate the circumference worksheet, 7th graders find the circumference given the diameter of 4 circles; the formula and the answers are provided.
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Organizer
Curated OER

Calculate the Diameter

For Students 6th
In this diameter worksheet, 6th graders find the diameter of 5 circles. Students are given the formula for circumference and circumference information along with a blank box to complete their work. 
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Worksheet
Curated OER

Finding the Sum of the Perimeters of 3 Small Circles

For Students 9th - 10th
For this geometry worksheet, students find the sum of the perimeters of three small circles.  These small circles are tangent to each other and to a larger circle.  The centers of the small circles have their centers on the diameter of...
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Lesson Plan
Curated OER

Circle Circus

For Teachers 3rd
Third graders find the radius and diameter of a bubble. In this radius and diameter lesson, 3rd graders create bubbles on their desk and find the radius and diameter of the bubble. Students work in partners to define circle terms and...
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Worksheet
Raytheon

Geometry: Circles

For Students 6th - 8th
In this geometric circumference worksheet, 8th graders calculate the circumference of each of the 18 circles. The remaining pages of the worksheet include formulas and lesson ideas on finding the circumference of circles.
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Interactive
Curated OER

Yoplait with Areas and Volumes

For Students 9th - 12th
In this areas and volumes worksheet, students find the area of truncated cones and elliptical cylinders.  They find the area by using one of three methods:  the disk method, the shell method, and using geometry.  This one-page worksheet...
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Worksheet
Curated OER

Details from an Exploding Star

For Students 8th - 10th
In this nebula worksheet, students read about the Crab Nebula and calculate the average speed of the expanding gas. They determine the size of the smallest clumps of gas and they draw the diameter of the solar system to scale.