## Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables.

80 Lesson(s)

Algebra I » Unit: Systems of Linear Equations
Washington, DC
Environment: Urban

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### Solving Linear Equations in Two Variables

Algebra I » Unit: Making Informed Decisions with Systems of Equations
Algebra I » Unit: Making Informed Decisions with Systems of Equations
Salem, MA
Environment: Urban

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### Graphing Systems of Equations

Algebra I » Unit: Making Informed Decisions with Systems of Equations
Algebra I » Unit: Making Informed Decisions with Systems of Equations
Salem, MA
Environment: Urban

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### Solving Systems by Graphing

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### How Far Can Substitution Take You?

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### Three Ways to Solve a Problem

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### Mastery Session: MP1, 5.1, and 5.2

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### Sweet Problems with Two Variables

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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#### When we're working on "classic elimination problems" it's important to recognize whether we're looking for an unknown cost or an unknown quantity.

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Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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#### Often the truest solution to a problem is that "it depends". Substitution is an efficient method for finding the precise intersection of two lines; a graph makes it clear what happens on either side of that point.

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Algebra I » Unit: Systems of Equations
Rogers, AR
Environment: Rural

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### The Best of 2 Cell Phone Plans

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Rogers, AR
Environment: Rural

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### Creating and Interpreting Equations to Solve Systems

Algebra I » Unit: Making Informed Decisions with Systems of Equations
Algebra I » Unit: Making Informed Decisions with Systems of Equations
Salem, MA
Environment: Urban

Big Idea:

#### Students create systems of equations and attempt to solve them as an introduction to the relevance of solving systems of equations and inequalities!

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Algebra I » Unit: Systems of Equations
Rogers, AR
Environment: Rural

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### From Graphing to Substitution

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

Big Idea:

#### It’s amazing to get to the point where students truly understand how useful and beautiful algebra can be. Transitioning from graphing systems to solving by substitution is an opportunity to get kids there.

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Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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Standards:

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Resources (19)

Reflections (1)
Common Core Math