# Patterns and Expressions

## Write variable expressions to represent word 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.

## Patterns and Expressions

by CK-12 //basic
Learn how to translate phrases into algebraic expressions.
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## Write and Evaluate Variable Expressions for Given Situations

by CK-12 //basic
Learn to write and evaluate variable expressions for given situations.
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## Finding and Comparing Rates - Overview

by CK-12 //basic
Overview
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## Finding and Comparing Rates - Example 1

by CK-12 //basic
Finding Unit Rates
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## Finding and Comparing Rates - Example 2

by CK-12 //basic
Comparing Unit Rates
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## Introduction to Variables and Variable Expressions

by CK-12 //basic
Introduces variables and variable expressions.
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## Examples: Writing Variable Expressions

by CK-12 //basic
Presents three money-related examples of converting a real-life problem to a math equation.
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## Example 1: Writing Basic Algebraic Expressions

by CK-12 //basic
Provides two basic examples of writing algebraic express when one quantity is more or less than another.
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## Example 2: Writing Basic Algebraic Expressions

by CK-12 //basic
Provides an example of writing an algebraic express for the distance traveled by two people with the total distance known.
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