Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Inequalities

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are given a number sentence expressed as an inequality and must fill in a blank to make it true. Includes video demonstrating a...
Unit Plan
Math Is Fun

Math Is Fun: Solving Inequality Word Questions

For Students 7th Standards
This tutorial models how to solve word problems which state that one unknown variable is greater or less than another. Includes detailed explanations of sample problems and ten practice questions to try.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Solving Inequalities

For Students 9th - 10th Standards
This site goes through steps to graph an inequality posed by a student.
Activity
Math Medics

S.o.s. Math: Solving Polynomial Inequalities

For Students 9th - 10th
A short lesson on solving quadratic and polynomial inequalities.
Unit Plan
Math Planet

Math Planet: Solving Absolute Value Equations and Inequalities

For Students 9th - 10th
The absolute value of a number a is written as |a| and represents the distance between a and 0 on a number line. An absolute value equation is an equation that contains an absolute value expression. The equation |x|= a has two solutions...
Unknown Type
Khan Academy

Khan Academy: Two Step Inequality Word Problems

For Students 7th Standards
Practice solving two-step inequality word problems.
Unit Plan
Khan Academy

Khan Academy: Inequality From Graph

For Students 5th - 7th
Practice writing equations of inequalities graphed on number lines. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Mr. Martini's Classroom: Kids Math Comparing Numbers

For Students Pre-K - 1st Standards
Compare numbers from 1 to 40 using inequality symbols and equal sign with this interactive game.
Unit Plan
Khan Academy

Khan Academy: Two Step Inequality Word Problems

For Students 6th - 8th
Practice constructing, interpreting, and solving linear inequalities that model real-world situations. 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: Elem Math: Comparing and Writing Decimal Inequalities

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video shows how to compare two decimals using the appropriate inequality sign. The video is followed by practice problems to assess student understanding of the...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Use Place Value Chart to Compare & Write Decimal Inequalities

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video shows how to use a place value chart to compare two decimals to determine which inequality sign makes the statement true. The video is followed by...
Unit Plan
Khan Academy

Khan Academy: Compare and Order Absolute Values

For Students 5th - 7th Standards
Write an inequality to compare absolute values. Order numbers written in absolute value form from least to greatest. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Lesson Plan
Student Achievement Partners

Illustrative Mathematics: Fishing Adventures [Pdf]

For Teachers 6th - 8th Standards
Students use a model to define variables, write expressions, create an inequality and then interpreting the results in this lesson.
Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: A Quadratic Inequality

For Students 9th - 10th
"Dr. Math" responds to a student question about writing solutions to quadratic inequalities in interval form.
Handout
University of Georgia

University of Georgia: Inter Math: Triangle Inequality

For Students 9th - 10th
This site has a description of the triangle inequality theorem along with a visual representation, and animation explaining the triangle inequality rule with the radii of circles at the segment endpoints. Links to related terms, more...
Graphic
Discovery Education

Discovery Education: Web Math: Plot/graph an Inequality

For Students 9th - 10th Standards
This site provides a step-by-step process to graph an inequality. Simply type in your expression, and the website will graph the expression as well as explain how and why it did what it did.
Handout
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Solving Linear Inequalities: Picture a Number Line

For Students 9th - 10th Standards
Dr. Math presents a visual (graphical) approach to solving a conjunction inequality.
Handout
Math Is Fun

Math Is Fun: Equal, Greater, or Less Than

For Students 1st - 8th Standards
Find definitions of the equal, not equal, less than, and greater than signs, as well as information what you are supposed to do with them and how they are used in general math and in algebra.
Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Polynomial Inequality Problem

For Students 9th - 10th Standards
This site from Drexel University answers student question about solving polynomial inequalities, "Dr. Math" provides a fairly thorough explanation in how to solve such problems.
Unit Plan
Math Medics

S.o.s. Math: Solving Inequalities: Basic Rules

For Students 9th - 10th Standards
Explains the basic rules for solving inequalities. Gives examples and exercises with solutions to practice this skill.
Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Interval Notation

For Students 9th - 10th
"Dr. Math" provides an explanation on how to express the solution of a conjunction inequality using interval notation.
Unit Plan
Math Open Reference

Math Open Reference: Triangles

For Students 9th - 10th Standards
A complete reference guide to types of triangles and triangle perimeter and area. It provides definitions and interactive animated activities that enhance further explanation.
Website
Discovery Education

Discovery Education: Web Math: Algebra

For Students 9th - 10th
This WebMath site provides links to tutorials and lessons in both Algebra I and II. Links to topics such as factoring, solving equations, polynomials, simplifying equations, graphing, and much more.