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Lesson Plan
Curated OER

Parts of a Circle

For Teachers 6th
Sixth graders use yarn, paper plate, and other materials to identify parts of a circle. In this parts of a circle lesson plan, 6th graders identify the circumference, radius, diameter, and other parts of a circle.
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Lesson Plan
Illustrative Mathematics

Designs

For Teachers 6th - 8th Standards
A resource that makes for excellent group work as students explore the area and perimeter of different complex designs made up of squares and circles. The commentary gives a clear definition of perimeter, but suggests that group members...
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Activity
Mrs. Burke's Math Page

Let Them Eat Pi

For Teachers 7th - 12th Standards
Looking for a fun and creative way to celebrate Pi Day? Then this is the resource for you. From a scavenger hunt and trivia contest to PowerPoint presentations and skills practice worksheets, this collection of materials is a...
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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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Lesson Plan
Curated OER

Math and Circumference

For Teachers 6th
Sixth graders explore geometry by utilizing mathematical formulas. In this circumference activity, 6th graders identify the difference between diameter, circumference and radius in a circle. Students review the formulas for finding...
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Lesson Plan
Curated OER

Can You Canula?

For Teachers 8th - 9th
Students calculate the circumference of a circle. In this geometry lesson, students measure the diameter of a circle using micrometers or calipers. They investigate the relationship of the diameter to that of the value of Pi.
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Lesson Plan
Curated OER

An Introduction to Pi and the Area of a Circle

For Teachers 5th - 7th
Young scholars explore measurements of a circle. In this lesson about circumference and radius, students practice calculating measurements of a circle. Young scholars estimate, calculate, and practice with graphing all while learning...
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Lesson Plan
Curated OER

Covering and Surrounding

For Teachers 5th - 6th
Students develop techniques for estimating the area of a circle and use ideas about area and perimeter to solve practical problems. In this area and perimeter lesson plan, students apply the concepts of perimeter and area to the solution...
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Lesson Plan
Curated OER

Circles and Pi

For Teachers 9th - 11th
Students identify the relationship between the radius and Pi. In this geometry activity, students calculate the circumference and area of a circle. They create visuals to help them see how the circumference relates to Pi.
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Lesson Plan
Curated OER

Discovering Pi

For Teachers 7th - 8th
Students develop a formula that describes the functional relationship of the circumference of a circle to its diameter. Working with a partner, they measure the diameter and circumference of circular objects in order to discover the...
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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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Interactive
Curated OER

Circles

For Students 10th
For this geometry worksheet, 10th graders determine the circumference and area of a circle given either the diameter or the radius. The one page interactive worksheet contains ten questions. Answers and hints are included. 
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Lesson Plan
Curated OER

Area, Perimeter, Circumference

For Teachers 6th
Sixth graders use different measuring tools to measure area, perimeter, and circumference of different shapes. For this measurement lesson plan, 6th graders measure parallelograms, triangles, and circles.
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Worksheet
Curated OER

Expressions and Operations

For Students 8th - 9th
In this expressions and operations worksheet, students solve and complete 5 different problems that include reading and solving each individual question. First, they determine the value of each equation given the variables. Then,...
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Worksheet
Curated OER

Expressions and Operations

For Students 7th - 8th
In this expressions and operations worksheet, students solve and complete 5 different problems that include identifying expressions and using the order of operations. First, they determine the value of a given expression and its...
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Worksheet
Curated OER

Discovering Pi

For Students 5th - 10th
In this math worksheet, students find the radius, diameter, and circumference of circles when pi is given. Examples are given in this well-designed worksheet.
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Lesson Plan
Curated OER

Worksheet #4: Simplify Algebraic Expressions With Two Variables

For Teachers 9th - 10th
In this algebraic expression worksheet, students simplify algebraic expressions and solve proportions, and write equations from story problems. Thirteen of the 49 problems are fill in the blank, and the remainder are multiple choice.
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Lesson Plan
Curated OER

Understanding Pi.

For Teachers 8th - 9th
Students study the relationship between circumference and diameter to come up with Pi. "In this pi lesson, students measure, record and find the ratio "circumference/diameter" and their average which is an approximation of pi.
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Lesson Plan
Curated OER

Don't Burst My Bubble

For Teachers 6th - 8th
Students practice using measuring techniques by examining bubbles.  In this geometry lesson, students utilize mathematic formulas to discover the circumference and diameter of soap bubbles they blow.  Students practice creating larger...
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Worksheet
Curated OER

Absolute Value Inequalities

For Students 9th
In this absolute value instructional activity, 9th graders solve 10 different problems that are related to inequalities of numbers. First, they determine the absolute value of each of the inequality equations shown. Then, students write...
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Worksheet
Curated OER

Chapter 6: Geometry Perimeter and Area

For Students 10th - 12th
In this perimeter and area instructional activity, students find the perimeter of various polygons.  They compute the perimeter, surface area, circumference, and volume of given figures.  Students explore trigonometric ratios.  This...
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Lesson Plan
Curated OER

Perimeter and Area of Similar Figures

For Teachers 9th - 12th
Learners determine the relationship between perimeter, circumference, area, surface area, and/or volume of similar figures and their parts. They complete activities related to the question. Answer key included.
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Lesson Plan
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Curated OER

Using Math Concepts to Collect and Document Specimens

For Teachers 8th - 12th
Students determine the length and width of leaf samples to the nearest millimeter and the circumference of trees. They participate in a discussion about the importance of collecting specimens carefully. They compile accurate...
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Worksheet
Curated OER

Solving Problems

For Students 10th - 12th
For this solving problems worksheet, students determine the area of a rectangle inscribed in a circle. They estimate distance between given planets. This two-page worksheet contains 2 multi-step problems.

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