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# Circumference

## Pi times the diameter or the distance around the circle.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Circumference

This concept teaches students how to calculate the circumference of a circle.

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• PLIX

Circumference Interactive

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• PLIX

## Circumference: Ancient Stonehenge Math Mysteries

Circumference Interactive

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• PLIX

## Circumference: Medium Circle & Circle Units

Circumference Interactive

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• PLIX

## Circumference: Big Circle & Circle Units

Circumference Interactive

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• PLIX

## Small Circles

Circumference Interactive

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## Definition of Pi

Circumference Interactive

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## Circling a Circle

Circumference Interactive

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• Video

## Circumference Principles

This video gives more detail about the mathematical principles presented in Circumference.

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• Video

## Circumference Examples

This video shows how to work step-by-step through one or more of the examples in Circumference.

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• Critical Thinking

## Circumference Discussion Questions

A list of student-submitted discussion questions for Circumference.

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To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

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To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

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## Circumference Stop and Jot Table

Learn new vocabulary words and help remember them by coming up with your own sentences with the new words using a Stop and Jot table.

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• Real World Application

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• Real World Application

## Getting in Gear!

Discover how gears work and how circumferences come into play.

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• Study Guide