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Lesson Plan
Curated OER

Solving multi-step inequalities and solving systems by elimination

For Teachers 8th - 11th
Students solve multi-step equations and apply the process of elimination. In this algebra lesson, students solve linear inequalities and equations using linear combination and evaluation. They graph their results on a number line and...
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Worksheet
Curated OER

Solving Inequalities

For Students 8th - 11th Standards
This is a nice worksheet on solving one variable and compound inequalities. Learners solve inequalities and graph the solution on a number line.  The two page worksheet contains explanation and sixteen practice problems. 
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Graphic
Richland Community College

Richland Com. College: Graphing Systems of Inequalities

For Students 9th - 10th
Thyis site offers problem solving systems and graphing systems of inequalities. Illustrations included.
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Activity
Other

Lake Tahoe Community College: Graphing Inequalities

For Students 9th - 10th
This site shows the steps for solving inequalities and gives example problems that are worked through step by step and then graphed. Also includes some exercises for you to do on your own.
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Unit Plan
Oswego City School District

Regents Exam Prep Center: Graphing Inequalities

For Students 9th - 10th
This tutorial shows students how to graph linear inequalities, then shade the appropriate side by testing a point. The site contains a practice page and a teacher resource page.
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Activity
Oswego City School District

Regents Exam Prep Center: Linear Inequalities

For Students 9th - 10th
Listed steps to graph an inequality along with a example that is graphed on a coordinate plane. Easy to read and understand!
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Interactive
Other

Quickmath.com: Inequality Graphs

For Students 9th - 10th Standards
This interactive site will allow you to input anywhere from 1 to 8 inequalities. Once entered, a graph is produced showing the solution. Each graph is shown individually; a final graph shows all on the same coordinate plane.
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Handout
University of Regina (Canada)

University of Regina: Math Central: Graphing a System of Inequalities

For Students 9th - 10th Standards
A solution is presented to a student-submitted problem. The problem involves graphing and finding the solution set to a system of inequalities.
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Activity
Other

University of Wisconsin: Graphing Inequalities

For Students 9th - 10th Standards
This site, which is provided for by the University of Wisconsin, gives a discussion in how to graph an inequality is presented. A link to practice problems is provided.
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Activity
Other

Inequalities: Graphing

For Students 9th - 10th
A good site with a brief explanation of how to graph inequalities.
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Graphic
Purple Math

Purplemath: Graphing Linear Inequalities Lesson: Y > Mx + B, Etc.

For Students 9th - 10th Standards
Demonstrates, step-by-step and with illustrations, how to graph linear (two-variable) inequalities.
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Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Solving Polynomial Inequalities

For Students 9th - 10th
"Dr. Math" responds to a student question on how to find the solution to a polynomial inequality. Dr. Math's solution is found through analyzing the graph of the function.
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Graphic
University of Regina (Canada)

University of Regina: Math Central: Graphing Inequalities of Conic Sections

For Students 9th - 10th Standards
A solution to a student submitted problem is given. The problem involves systems of conic sections with inequalities.