# Words that Describe Patterns

## Use variable expressions to solve real-world problems.

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.

## Words that Describe Patterns

by CK-12 //basic
Learn how to describe patterns with sentences.
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## Words that Describe Patterns

by CK-12 //basic
Learn to write and evaluate variable expressions to solve real-world problems.
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## Expressions for Real-Life Situations

by CK-12 //basic
Discover how to write variable expressions to represent real world situations.
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## Translating Phrases into Expressions - Overview

by CK-12 //basic
Overview
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## Translating Real-World Situations into Expressions - Overview

by CK-12 //basic
Overview
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## Translating Phrases into Equations - Overview

by CK-12 //basic
Overview
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## Evaluating an Expression with Multiple Variables

by CK-12 //basic
Learn how to evaluate expressions with multiple variables.
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## Translating Phrases into Expressions - Example 1

by CK-12 //basic
Translating Phrases into Expressions with One Operation
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## Translating Phrases into Expressions - Example 2

by CK-12 //basic
Translating Phrases into Expressions with Multiple Operations
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## More Complicated Order of Operations Example

by CK-12 //basic
Reviews the order of operations with a more complicated sample problem.
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## Translating Real-World Situations into Expressions - Example 1

by CK-12 //basic
Translating Real-World Situations into Expressions with One Operation
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## Translating Real-World Situations into Expressions - Example 2

by CK-12 //basic
Translating Real-World Situations into Expressions with Multiple Operations
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## Translating Phrases into Equations - Example 1

by CK-12 //basic
Translating Phrases into Equations with One Operation
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## Why is "x" the Unknown?

by CK-12 //basic
Terry Moore answers the question "Why do we use x in algebra?" in this video.
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## Identifying Parts of an Expression - Overview

by CK-12 //basic
Overview
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## Evaluating Expressions Given a Variable Value - Example 1

by CK-12 //basic
Evaluating Opposite Expressions Given a Variable Value
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## Identifying Parts of an Expression - Example 1

by CK-12 //basic
Determining Parts as Like Terms, Constants, and Coefficients Given a Math Statement
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## Evaluating Expressions Given a Variable Value - Example 2

by CK-12 //basic
Evaluating Absolute Value Expressions Given a Variable Value
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