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# Arc Length

## Portion of a circle's circumference.

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.
• PLIX

## Around the Circle

Arc Length Interactive

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• Video

## Arc Length Principles

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

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• Video

## Arc Length Examples

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

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• Practice
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## Arc Length Practice

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• Critical Thinking

## Arc Length Discussion Questions

A list of student-submitted discussion questions for Arc Length.

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To stress understanding of a concept by summarizing the main idea and applying that understanding to create visual aids and generate questions and comments using a Concept Matrix.

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To activate prior knowledge, make personal connections, reflect on key concepts, encourage critical thinking, and assess student knowledge on the topic prior to reading using a Quickwrite.

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• Real World Application

## How Far Is It to London?

Dabble in some cartography and find out how you can use geometry to calculate distances on a globe.

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• Study Guide