Website
Cool Math

Coolmath: Solving Inequalities Solving Basic Guys

For Students 9th - 10th Standards
This CoolMath resource will help students learn how to solve inequalities and graph them on a number line.
Unit Plan
Windstream

Ojk's Precalculus Study Page: Linear Inequalities and Absolute Value

For Students 9th - 10th Standards
This tutorial demonstrates how to solve linear equalities. It also defines absolute value and demonstrates how to solve problems involving absolute value.
Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Inequalities

For Students 9th - 10th Standards
"Dr. Math" responds to a student question about solving inequalities. Within the response, a list of the properties of inequalities is provided. Site by Math Forum
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.
Whiteboard
ClassFlow

Class Flow: Solving and Graphing Inequalities and Systems of Inequalities

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Students view a demonstration on solving and graphing inequalities and systems of inequalities and then come to the Active Board and practice what they've learned.
Graphic
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Graphing Inequalities One Variable

For Students 9th - 10th Standards
Find a quick, concise explanation of how to graph a one variable inequality. An example is given and clearly explained.
Unit Plan
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Inequalities

For Students 5th - 8th Standards
Find a quick, concise explanation of inequalities. Examples are given and clearly explained.
Whiteboard
ClassFlow

Class Flow: Inequalities (Algebra)

For Teachers 9th - 10th Standards
[Free Registration/Login Required] In this Flipchart students are introduced to equational inequalities and graphing inequalities.
Unit Plan
Shmoop University

Shmoop: Basic Algebra: Graphing Inequalities

For Students 9th - 10th Standards
The tutorial discusses how to graph inequalities. Learners explore the concept through notes and examples. Practice problems are included to check for comprehension of the algebra topic.
Unknown Type
That Quiz

That Quiz: Recta Numerica

For Students 9th - 10th Standards
Practice identifying numbers on the number line, distance between two numbers, and graphing inequalities. This page provides four different levels and tracks the number of correct answers.
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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.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphs of Inequalities in One Variable

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Students learn to graph linear inequalities on the coordinate plane. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Reversing the Inequality Symbol

For Students 9th - 10th Standards
"Dr. Math" responds to a student inquiry of why it is necessary to reverse the inequality sign when multiplying/dividing by a negative value.