Curated OER
Functions of Algebra
Learners use technology graph and evaluate linear inequalities. They write and manipulate inequalities for use on a graphing calculator. In addition they apply their skills to analyze inequalities. Answer Key included.
Curated OER
Earth Day Equalities
Do your young mathematicians recognize the recycle sign? Learners fill in the blank circles inside the recycle sign with the arrows, pointing to the next number in the sequence, with the correct inequality sign or equal sign to make the...
Curated OER
Balances
In this balances worksheet, students use the blank balances for any math purpose. There are 12 balances on one page. These can be used for equalities in math.
Curated OER
Grab Bags
Eighth graders graph two inequalities with a single variable. They include drawing the intersection or union of inequalities on a number line. Students solve the linear equations using properties of equality and inequality. The lesson...
Richland Community College
Rcc: Solving Inequalities Algebraically and Graphically
Straightforward explanations on how to solve inequalities. Includes linear inequalities, double inequalities, absolute value inequalities, polynomial inequalities, and rational inequalities.
Wolfram Research
Wolfram Mathworld: Inequality
This site provides a brief overview of inequality. Content includes a definition and several examples using graphical images. (Absolute value graphs are used in this site.)
University of Saskatchewan (Canada)
University of Saskatchewan: Inequalities
This University of Saskatchewan looks at the basic rules of solving inequalities, concentrating on inequalities with absolute values. Includes example problems and exercises with their solutions.
Math Planet
Math Planet: Algebra 2: Trigonometry: Trigonometric Identities
Provides an explanation, examples, and a video lesson all related to trigonometric identities. [2:31]
Texas Education Agency
Texas Gateway: Using Models to Solve Equations
Given a problem, the student will use concrete and pictorial models to solve equations and use symbols to record their actions.
Windstream
Ojk's Precalculus Study Page: Linear Inequalities and Absolute Value
This tutorial demonstrates how to solve linear equalities. It also defines absolute value and demonstrates how to solve problems involving absolute value.
National Council of Teachers of Mathematics
The Math Forum: Nctm: Ask Dr. Math: Solving Inequalities
In response to a student question about solving an inequality, "Dr. Math" provides a general discussion of what is necessary to solve these types of problems.
University of Regina (Canada)
University of Regina: Math Central: Reversing the Inequality Symbol
In response to a student question regarding the reversing of the inequality symbol, a method is presented in how one can avoid reversing the symbol.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Reversing the Inequality Symbol
"Dr. Math" responds to a student inquiry of why it is necessary to reverse the inequality sign when multiplying/dividing by a negative value.