Wolfram Research
Wolfram Math World: Absolute Value
Defines the concept of absolute value in a variety of mathematical methods and difficulties. Includes special links for further investigation.
Math Medics
S.o.s. Math: Absolute Value Inequalities
After explaining the geometric definition of absolute value, this lesson will guide you through several examples in solving inequalities that involve absolute value. Practice exercises and their solutions are also included.
Math Is Fun
Math Is Fun: Definition of Absolute Value
Get the definition for Absolute Value. Then, move the slider along the interactive number to see examples. Click on the link, "here's more" for more information.
Soft Schools
Soft Schools: Rational Numbers on the Number Line
Practice placing negative and positive numbers on a number line in this interactive self-correcting quiz.
J Coffman
Joseph Coffman's Lecture Notes: Solving Absolute Value Equations
The lesson examines solving absolute value equations and inequalities. Students learn about extraneous solutions, conjunctions, and disjunctions. Definitions, formulas, examples, and a quiz are included.
J Coffman
Joseph Coffman's Lecture Notes: Absolute Value Functions and Graphs
Students learn about absolute value functions. The learning exercise consists of examples and an assessment on how to graph absolute value functions.
Math Planet
Math Planet: Pre Algebra: Absolute Value
Gain an understanding of absolute value by viewing examples and a video lesson. [0:58]
McGraw Hill
Glencoe Mathematics: Online Study Tools: Integers and Absolute Value
This site gives a short interactive quiz which allows students to self-assess their understanding of integers and absolute value.
Other
Math Bugs Me: Add Subtract Integers
This website provides students tips on how to add integers using absolute value and by introducing them to a pattern.
Khan Academy
Khan Academy: Interpreting Absolute Value
Practice understanding the meaning of absolute value in real-world scenarios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Equivalent Expressions With Negative Numbers
Practice identifying equivalent expressions involving the addition and subtraction of negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Negative Numbers on the Number Line
In this exercise, students practice finding negative numbers on the number line. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Soft Schools
Soft Schools: Integers and Real Numbers Quiz
Students are expected to evaluate the sum, difference, product, quotient, and the absolute value of real numbers and integers. Also, they must know the concepts of positive and negative numbers.
CK-12 Foundation
Ck 12: Algebra: Absolute Value
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn to evaluate absolute values, find the distance between two points, and solve absolute value equations. Students can watch a video...
CK-12 Foundation
Ck 12: Absolute Value: Picket Fence Painting
[Free Registration/Login Required] Students use a real world situtation to explore absolute value and how to find the distance between two numbers on a number line. Click challenge me to answer a practice question and click learn more to...
CK-12 Foundation
Ck 12: Algebra: Absolute Value
[Free Registration/Login may be required to access all resource tools.] This concept introduces absolute value. Students can watch a video tutorial, explore guided notes and then attempt practice problems.
Khan Academy
Khan Academy: Negative Numbers on the Number Line
Identify positive and negative integers on the number line. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Finding Absolute Values
Practice finding the absolute value of a number, like -4 or 3. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Negative Numbers, Variables, Number Line
Practice comparing positive and negative numbers by thinking about their positions on the number line. Numbers to the right are greater than numbers to the left. Students receive immediate feedback and have the opportunity to try...
Khan Academy
Khan Academy: Ordering Negative Number Expressions
Practice solving challenging negative number addition and subtraction problems. Number line models, variables, and absolute value come together to push your knowledge of negative numbers even deeper (maybe even below zero!). Students...
CK-12 Foundation
Ck 12: Algebra: Absolute Value Equations
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to solve equations involving absolute value. Students can explore guided notes and then attempt practice problems.
Learning Wave Communications
Learning Wave: Absolute Value: Danger for Deep Sea Carl
In this interactive math game, students use absolute value to determine how many feet below sea level Carl must be to stay away from the shark.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Meaning of an Absolute Value Inequality
"Dr. Math" presents an in-depth discussion of the meaning of an absolute value inequality. The discussion tries to clarify some of the mis-conceptions surrounding absolute value.
CK-12 Foundation
Ck 12: Algebra: Additive Inverses and Absolute Values
[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn about additive inverses and absolute values.