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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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Lesson Plan
Curated OER

History and the Approximations of pi

For Teachers 7th - 8th
Middle schoolers investigate Pi. For this mathematics lesson, learners discuss the history of Pi and determine how the approximation of Pi was discovered.
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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

Approximation of Pi

For Teachers 9th - 12th
Young scholars explore the concept of Pi.  In this Pi lesson, students measure the circumference and diameter of a circle.  Young scholars record the diameter and circumference measurements from their classmates.  Students enter the data...
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Instructional Video3:29
PBS

Scale City — Scaling up Recipes and Circles in the Real World

For Students 6th - 7th Standards
What a great big skillet you have. The resource introduces the class to the world's largest stainless steel skillet. The class creates a model of the skillet and a typical 12-inch skillet and compares the relative sizes of their areas....
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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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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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Lesson Plan
Curated OER

Finding Circumference and Area of a Circle

For Teachers 7th
Young geometers explore the concept of circumference and area of circles. They discuss what information is needed to find circumference and area. The resource employs several instructional methods: Frayer Model for Vocabulary, literature...
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Worksheet
Mrs. Glosser's Math Goodies

Circumference & Area Worksheet 1

For Students 6th - 9th Standards
Don't stress about creating your own problems and use this series of circumference and area worksheets. The problems ask pupil to plug diameter and radius into the formula to solve for area or circumference. The problems also have...
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Worksheet
Mrs. Glosser's Math Goodies

Circumference & Area Worksheet 2

For Students 6th - 9th Standards
With plenty of problems to chose from, this series of worksheets provides you different types of area and circumference problems. Your learners can plug diameter and radius in to solve, or they can work backward when the area or...
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Worksheet
Mrs. Glosser's Math Goodies

Circumference & Area Worksheet 3

For Students 6th - 9th Standards
You can't go wrong with this series of practice problems about circumference and area. The answer keys are provided, so you can use some or all of the problems without needing to worry about solving beforehand. Some problems have your...
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Lesson Plan
Curated OER

"Pi" Day

For Teachers 8th - 12th
Your class will complete research dealing with Pi and its value in mathematics, leading into a discovery lab to demonstrate Pi, how it is determined, and how it is used. In the end, students eat PIE!
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Worksheet
Curated OER

Some Facts about Pi

For Students 10th
In this Pi handout, 10th graders are provided with a brief history of Pi as well as mnemonics they can use to remember the digits of Pi. There are additional links on this page that provide access to more interesting facts about Pi
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Lesson Plan
Curated OER

Search for the Missing Pi

For Teachers 3rd
Third graders work in groups of two to three with measuring tapes, finding the circumference and diameter of teacher-selected circular items. They relate circumference and diameter measurements to find pi.
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Lesson Plan
Curated OER

Looking at Circumference

For Teachers 6th - 8th
Students understand where the number for pi comes from. They understand and use the formula for circumference. Students measure the circles given out and the diameters of those circles and record the results on their worksheet.
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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
TOPS Learning Systems

PI in the SKY

For Teachers 5th - 12th Standards
What is pi anyway?  After this set of activities, your pupils should have multiple answers to this question. Investigate pi with various experiments and discoveries. Calculate the ratio circumference/diameter for different sized circles....
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Lesson Plan
Curated OER

Discovering pi

For Teachers 10th
Tenth graders investigate the history of Pi and how it relates to circles. In this geometry lesson, 10th graders measure the circumference of a circle and the diameter of a circle. They relate these measurements to the number of Pi or 3.14
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Worksheet
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K12 Reader

Anatomy of a Circle

For Students 4th - 5th Standards
Make sure your learners are well-versed in circles with a reading passage. Pupils will pick up some important circle-related terms as they read and respond to the five included questions.
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Activity
Pie Council

National π Day

For Teachers 4th - 8th Standards
Learners can enjoy pi with pie! A collection of short activities celebrates pi day with a word search, a maze, and real-world problemsn. Using pi in formulas for area, circumference, and volume as well as exploring simple fractions is...
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Lesson Plan
Curated OER

Square Circles

For Teachers 7th - 9th
Students find the perimeter and diameter of given shapes.  In this square circles lesson, students measure circles and squares.  They explore the relationship between the circumference of a circle and its diameter.  Students examine the...
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Worksheet
Curated OER

Writing Equations of Circles

For Students 10th - 12th
In this writing equations worksheet, students examine given information and write the equation of a circle in standard form. This four-page worksheet contains 30 problems. Answers are provided on the last page.
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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
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 instructs classmates to measure the circumference and diameters of circles using yarn. The ratio of these quantities defines pi.