Unit 4: Expressions and More Equations

Students write equivalent expressions and use reasoning to solve linear equations, including those with a variable on both sides of the equal sign and equations with 0, 1, or infinite solutions.

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Unit

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Concept

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Practice

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Set 1

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Set 2

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Advanced

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What this unit covers

A Writing Equivalent Expressions · 4 lessons

Goals

• Apply properties of operations to write an expression with fewer terms that is equivalent to a given expression.
• Apply the distributive property to factor or expand an expression.

Lessons

1. Subtraction in Equivalent Expressions
2. Expanding and Factoring
3. Combining Like Terms (Part 1)
4. Combining Like Terms (Part 2)

B Equivalent Equations · 5 lessons

Goals

• Write equivalent equations and describe the moves that are used.
• Write equivalent equations to solve linear equations in one variable.

Lessons

1. Keeping the Equation Balanced
2. Balanced Moves
3. More Balanced Moves
4. Solving Any Linear Equation
5. Strategic Solving

C Linear Equations in One Variable · 2 lessons

Goals

• Describe features of linear equations that have one solution, no solution, or many solutions.
• Interpret the solution of an equation in one variable in context.

Lessons

1. All, Some, or No Solutions
2. How Many Solutions?

D Let’s Put It to Work · 1 lesson

Lessons

1. Applications of Expressions (Optional)