Lesson Plan
Alabama Learning Exchange

Alex: Focusing on Graphs

For Teachers 9th - 10th Standards
In this lesson, students will solve systems of linear equations by graphing. Systems of linear equations are two or more linear equations together.
Unknown Type
Khan Academy

Khan Academy: Systems of Inequalities Word Problems

For Students 9th - 10th Standards
Solve word problems that involve systems of linear inequalities. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Unit Plan
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Sistemas De Ecuaciones Lineales

For Students 9th - 10th Standards
In Spanish. In this interactive unit learn how to identify, graph and solve linear equations with two unknowns.
Unknown Type
Khan Academy

Khan Academy: Algebra: Constraint Solutions of Systems of Inequalities

For Students 9th - 10th Standards
Find the range of values of one variable that corresponds to a given value of the other variable in a system of two-variable linear inequalities. Students receive immediate feedback and have the opportunity to try questions repeatedly,...
Lesson Plan
Alabama Learning Exchange

Alex: Systems of Equations: What Method Do You Prefer?

For Teachers 9th - 10th Standards
The purpose of this lesson is to help students apply math concepts of solving systems of equations to real life situations. The students will use the three methods of graphing, substitution, and elimination to solve the system of...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Inequalities in Two Variables

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Graph linear inequalities to find solutions.
Unit Plan
Khan Academy

Khan Academy: Equations & Inequalities Word Problems

For Students 9th - 10th Standards
HSA-CED.A.1: Interactive resource which create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions....
Activity
Purple Math

Purplemath: Systems of Linear Inequalities

For Students 9th - 10th Standards
This Purplemath lesson describes how to solve a system of linear inequalities by graphing.
Unit Plan
Texas Education Agency

Texas Gateway: Solving Linear Inequalities

For Students 9th - 10th Standards
The student will represent linear inequalities using equations, tables, and graphs. The student will solve linear inequalities using graphs or properties of equality, and determine whether or not a given point is a solution to a linear...
Unit Plan
Oswego City School District

Regents Exam Prep Center: Systems of Linear Inequalities

For Students 9th - 10th Standards
Solving a system of linear inequalities is shown to be as easy as solving a system of linear equations! An example is explained before students are given several problems to complete on their own. Complete explanations of these are...
Lesson Plan
Alabama Learning Exchange

Alex: Battleships

For Teachers 9th - 10th
This lesson is designed to review and reinforce three methods (graphing, substitution and elimination) of solving systems of linear equations. The students will work together and independently to find the solutions to systems of...
Unknown Type
Khan Academy

Khan Academy: Interpret Equations Graphically

For Students 9th - 10th Standards
Practice the connection between the graphical representation of equations and their algebraic solutions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Inequalities in Two Variables

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers graphing inequalities in two variables.
Activity
Texas Instruments

Texas Instruments: Getting Started With the Ti Navigator System: River of Life

For Teachers 9th - 10th Standards
This lesson introduces students to Activity Center and is intended to help students develop the conceptual understanding of how to identify functions as linear or nonlinear and contrast their properties from tables, graphs, or equations.
Activity
Texas Instruments

Texas Instruments: Glencoe Algebra 2: Augmented Matrices

For Teachers 9th - 10th
Students will solve systems of linear equations.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Rei Solution Sets

For Teachers 9th - 10th Standards
For this task, students are shown the graphs of two equations, with areas bounded by their lines and intersections shaded in different colors. They are asked to write a system of equations or inequalities for each shaded area and explain...
Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Set the Trap

For Teachers 9th - 10th Standards
Based off of the hit television show NUMB3RS, this lesson shows students a real-world application to matrices and matrix operations. Framed in the context of a stolen painting which the thief may hide at different warehouses, students...
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Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 11 [Pdf]

For Students 9th - 10th Standards
The practice problem examines the elimination method for solving a system of linear equations. The graphs of the equations are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 12 [Pdf]

For Students 9th - 10th
The practice problem examines the elimination method for solving a system of linear equations. The graphs of the equations are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 23 [Pdf]

For Students 9th - 10th Standards
Students label the graphs of two linear equations and then solve the system. The graphs are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 24 [Pdf]

For Students 9th - 10th Standards
Students label the graphs of two linear equations and then solve the system. The graphs are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 19 [Pdf]

For Students 9th - 10th
The practice problem examines a system of linear equations. The math graphs are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 20 [Pdf]

For Students 9th - 10th
The practice problem examines a system of linear equations. The math graphs are available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Elimination Method 29 [Pdf]

For Students 9th - 10th
The exercise investigates the elimination method for solving a system of linear equations. The two graphs are available in PDF format.