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Worksheet
Curated OER

Circles

For Students 9th - 10th
In this geometry activity, students solve problems by finding the diameter, radius and chord of a circle. They also solve for the area of the circle. There are 10 questions with an answer key.
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Lesson Plan
Curated OER

To the Moon

For Teachers 6th - 12th Standards
Pupils explore circumference manipulating Moon Pie wrapper. In this geometry lesson, they manipulate snack wrappers to find circumference, diameter, radius and distance.
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Worksheet
Curated OER

Sixth Grade Mathematics Test

For Students 6th
For this mathematics worksheet, 6th graders are tested on the mathematics skills. Students use problem solving strategies to work the given equations and situations.
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Worksheet
Curated OER

TT Pies

For Students 4th - 6th
In this activity about geometry, students learn about circumference. Students are required to find circumference of pies in this activity. There are eight problems in this activity. As a bonus students are asked to find the radius of...
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Lesson Plan
Curated OER

Circles

For Teachers 10th
Tenth graders explore and define the radius and diameter of a circle. In this geometry lesson, 10th graders calculate the circumference and area of a circle using real world objects and shapes. They discuss chords and lines tangent to a...
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Lesson Plan
Curated OER

Finding Areas of Triangles, Rectangles, and Circles

For Teachers 9th - 10th
Students find the areas of geometric shapes. In this geometry lesson plan students find and measure the sides, perimeters, and areas of quadrilaterals, triangles, and circles. Students relate the measures to the others by using formulas.
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Lesson Plan
Curated OER

Circumference and Area of Circles

For Teachers 5th - 6th
In this math worksheet, learners learn to calculate the area and circumference of a circle. Students answer 4 word problems after reading the information and studying the examples.
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Lesson Plan
Curated OER

Square Circles

For Teachers 6th - 7th
Students analyze and demonstrate how a circle can be measured in square units and examine how diameter, circumference and radius are related.
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Lesson Plan
Curated OER

Using Circumference

For Teachers 9th - 10th
Students participate in a lesson that covers the concept of finding the circumference of a circle. The teacher covers relevant vocabulary with the students. They work in groups to measure objects and calculate the formula to find the...
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Lesson Plan
Curated OER

THE AREA OF A CIRCLE

For Teachers 7th - 12th
Students examine the relationship between circumference and diameter and how to use the formula to find the area of a circle.  In this circle lesson plan students divide into groups and complete an activity. 
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Lesson Plan
Curated OER

The Circumference and Diameter of a Circle

For Teachers 9th
Ninth graders investigate the finding of the diameter of a circle in order to extend the practice towards finding the circumference. They differentiate between the distance measured across a circle from that of around the perimeter.
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Worksheet
Curated OER

Perimeter, Circumference and Area

For Students 9th - 11th
In this measurement learning exercise, students identify the area, perimeter and circumference of a diagram. They also find the size of a pond based on the diagram shown on the sheet. Finally, students calculate how much carpet is needed...
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Worksheet
Curated OER

Math Practice: Circles

For Students 4th - 6th
In this circle worksheet, students solve 8 problems: finding percentage increase, finding differences in area and perimeter, finding circumference and area.
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Lesson Plan
Curated OER

The Librarian Who Measured the Circumference of the Earth

For Teachers 6th
Sixth graders explore angles, triangles, and investigate the circumference of the earth. They participate in a Webquest, access data bases, and communicate with other students through an on-line project site involving the circumference...
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Lesson Plan
Curated OER

Puck's Girdle

For Teachers 5th
Fifth graders calculate the perimeters, areas, and volumes of everyday objects. They discuss the word problem involving Puck from the Shakespeare play "Mid-Summer Night's Dream," and invent and plan a method for solving the problem in...
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Activity
101 Questions

Rotonda West, FL

For Teachers 9th - 12th Standards
The shortest distance from point A to point B is a straight line—or is it? Young scholars determine the shortest route either along a circular path or through the center of the circle. Learners gain a unique perspective on arc length and...
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Lesson Plan
Curated OER

Our Solar System - Comparing Planetary Travel Distances

For Teachers 7th - 8th
NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...
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Activity
American Heart Association

Pi Day

For Teachers 5th - 8th Standards
Did you know a mathematician's favorite dessert is a fruit "pi"? By participating in a fruit cutting activity, young mathematicians realize one constant—the ratio of a circle's circumference to its diameter is always pi. It is a perfect...
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Lesson Plan
Curated OER

How Big is Barbie?

For Teachers 9th - 12th
Students measure various dimensions of a male and a female dolls body and scale them proportionally to average human measurements. They calculate the appropriate scale factor (magnitude) to enlarge their doll and apply that scale factor...
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Performance
Radford University

How do I Prepare this Piece of Floor Tile to Lay on the Bottom of my Kitchen Sink Cabinet?

For Teachers 9th - 12th Standards
How can you place a rectangular tile around a pipe? Scholars first use a model of a kitchen sink cabinet to take measurements. Using a compass and their knowledge of circles, they then cut out a circle from a piece of poster board (which...
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Lesson Plan
Curated OER

The Circumference of a Pumpkin

For Teachers 5th - 6th
Pupils complete a pumpkin circumference activity. In this pumpkin circumference lesson, students make a raw estimate and use a string to measure the circumference of a pumpkin. Pupils also define the term circumference.
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Worksheet
Curated OER

Circle Mat

For Students 1st - 8th
In this math worksheet, students use the circle to calculate a variety of problems using circumference or area. The sheet does not have specific directions.
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Lesson Plan
Curated OER

"Sir Cumference and the First Round Table" by Cindy Neuschwander

For Teachers 6th - 8th
Students develop an understanding of measurable attributes of circles; develop a formula to determine the circumference of circles. They approximate the value of pi.
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Lesson Plan
Curated OER

Around the World

For Teachers 6th - 8th
Learners find the circumference of various round objects.  In this finding the circumference of various round objects lesson, students find the circumference of the Earth.  Learners find the circumference of trees, tires, and other...

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