PBS
Pbs Newshour Extra: Week of 2 17 14: Inequality in Education Across n.c. Schools
A video and brief article cover the issue of access to arts education in North Carolina public schools. [8:10]
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.
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.
Curated OER
Science Kids: Science Images: Inequation Sign
This picture is an inequation sign, used in mathematics to state that two expressions or objects are not the same, or do not have the same value.
Math Planet
Math Planet: Solving Absolute Value Equations and Inequalities
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...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Absolute Value Inequalities
Find a quick, concise explanation of how to solve an absolute value inequality. Step by step examples are included to help you understand how to solve this inequality by breaking it into a compound inequality.
CK-12 Foundation
Ck 12: Algebra: Words That Describe Patterns
[Free Registration/Login may be required to access all resource tools.] Translate a verbal expression into an algebraic equation or inequality.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving Inequalities
This site goes through steps to graph an inequality posed by a student.
Oswego City School District
Regents Exam Prep Center: Linear Inequalities
Listed steps to graph an inequality along with a example that is graphed on a coordinate plane. Easy to read and understand!
Mathigon
Mathigon: Geometry: Angles and Polygons: Drawing Triangles
This lesson focuses on the Triangle Inequality, when the sum of the lengths of any two sides of a triangle is greater than the length of the third. When this happens, the three sides cannot form a triangle.
Purple Math
Purplemath: Solving Linear Inequalities: Introduction and Formatting
This resource demonstrates how to solve linear inequalities step-by-step and shows four different solution formats/notations viz. inequality notation, set notation, interval notation, and the last "notation" which is more of an...
CK-12 Foundation
Ck 12: Geometry: Inequalities in Triangles Study Guide
This study guide on triangle inequalities discusses comparing angles and sides, the Triangle Inequality Theorem, and the Hinge Theorem. It is available for download with free registration.
AdLit
Ad lit.org: The Evidence Suggests Otherwise: The Truth About Boys and Girls
The media has latched on to the story that American boys are falling behind girls academically and are increasingly outnumbered in college. But what do the numbers show? Referencing more than 30 years of test scores and current research,...
Texas Instruments
Texas Instruments: Verify Absolute Value Inequalities With a Graphical Approach
Find the solution sets of absolute value inequalities like abs(x-3)5 using the equation editor (y=). Focus on finding the boundaries of inequality intervals.
Mr. Martini's Classroom
Mr. Martini's Classroom: Mr. Martini's Classroom: Kids Math Comparing Numbers
Compare numbers from 1 to 40 using inequality symbols and equal sign with this interactive game.
Illustrative Mathematics
Illustrative Mathematics: 7.ee Sports Equipment Set
In this lesson, 7th graders write and solve an inequality to solve the problem.
Paul Dawkins
Paul's Online Notes: Calculus I: Proof of Various Limit Properties
The tutorial proves some of the basic properties and facts about limits. Topics discussed are limit properties, triangle inequality, continuity, and limits at infinity. Class notes, definitions, and examples with detailed solutions are...
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems
Practice using your graphing calculator for linear equation and linear inequality problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
CK-12 Foundation
Ck 12: Analysis: Induction and Inequalities
[Free Registration/Login may be required to access all resource tools.] The transitive property of inequality and induction with inequalities. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Elem Math: Inequalities
[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...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving Linear Inequalities: Picture a Number Line
Dr. Math presents a visual (graphical) approach to solving a conjunction inequality.
University of Minnesota
University of Minnesota: Immigration Syllabus: Weeks 1 2
Week 1: Why study immigration? What does the study of immigration reveal about U.S. history and which stories we tell about ourselves as a people? Week 2: Settlers, Servants, and Slaves in British, French, and Spanish Colonial America:...
Khan Academy
Khan Academy: Two Variable Inequalities From Their Graphs
Fit an algebraic two-variable inequality to its appropriate graph. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Graphing Linear Inequalities
A tutorial on how to graph a linear inequality in two variables. The tutorial offers step-by-step instruction and examples of how to graph linear inequalities.
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