Handout
Cool Math

Coolmath: What's an Absolute Value?

For Students 10th - 12th
One page reference sheet with examples of an absolute value.
Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Absolute Value

For Students 9th - 10th Standards
Find a quick, concise explanation of absolute value. Examples are included to help you understand this topic.
Unit Plan
Shmoop University

Shmoop: Basic Operations: Absolute Value

For Students 9th - 10th Standards
Students learn about absolute value. The resource consists of notes, step-by-step examples, and practice problems with solutions.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Absolute Value Equations

For Teachers 9th - 10th
The concept of absolute value equations is explained and then explored through several examples. Tips and suggestions are offered as to the common pitfalls to avoid. An all-class activity is also explained for the teacher to engage the...
Activity
Math Medics

S.o.s. Math: Solving Equations With Absolute Values

For Students 9th - 10th
This lesson from S.O.S. Mathematics gives the definition of absolute value and examples on how to solve absolute value equations. Includes problems and solutions.
Interactive
Other

Interactive Algebra: Solving Absolute Value Equations

For Students 9th - 10th
This interactive site provides randomly selected absolute value equations for you to solve and then allows you to check your answers.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Solving Absolute Value Inequalities

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Students explore the concept of solving absolute value inequalities by watching a video, examining guided notes and attempting practicd problems.
Handout
Other

Mathway: Algebra Formulas

For Students 9th - 10th Standards
Comprehensive resource provides algebra formulas for exponents, absolute value, factoring Pythagorean Theorem, linear equations, quadratic formula, distance formula, midpoint formula, and slope of a line through two points.
Activity
Purple Math

Purplemath: Algebra Resources

For Students 9th - 10th
Purplemath contains about 40 different lessons on various algebra topics. The lessons are divided into five different sections: preliminary topics, beginning algebra, intermediate algebra, advanced algebra, and word problems. The lessons...
Activity
Richland Community College

Rcc: Solving Inequalities Algebraically and Graphically

For Students 9th - 10th
Straightforward explanations on how to solve inequalities. Includes linear inequalities, double inequalities, absolute value inequalities, polynomial inequalities, and rational inequalities.
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.
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,...
Activity
Paul Dawkins

Paul's Online Notes: Algebra & Trig Review

For Students 9th - 10th Standards
The tutorial reviews algebra and trigonometric topics needed in Calculus. Topics examined are solving equations, rational expressions, absolute value, solving trigonometric functions, exponentials, and logarithms. Class notes,...
Activity
Paul Dawkins

Paul's Online Notes: Algebra: Solving Equations and Inequalities

For Students 9th - 10th Standards
Students learn how to solve equations and inequalities. Topics examined are linear equations, quadratic equations, linear inequalities, and absolute value inequalities. The class notes are available in pdf format.
Handout
Help Algebra

Help algebra.com: The Real Number System

For Students 9th - 10th Standards
Natural numbers, whole numbers, integers and rational numbers begin this lesson on the real number system. You can also learn more about the number line and absolute value. Examples and diagrams are included to enhance understanding.
Whiteboard
ClassFlow

Class Flow: Algebra Jeopardy

For Teachers 9th - 10th
[Free Registration/Login Required] Use this jeopardy game to review absolute value, inequalities, variables and equations. The non-linear format allows for a fun way to review this material.
Interactive
Other

Interactive Algebra

For Students 9th - 10th
This interactive site allows you to practice several algebraic concepts, including solving equations, factoring, and graphing. Problems are randomly generated and allow unlimited practice. Each link contains buttons that allow you to get...
Activity
Paul Dawkins

Paul's Online Notes: Algebra Cheat Sheet [Pdf]

For Students 6th - 8th
An algebra "cheat sheet" to use as a reference when completing algebra homework. Lists basic facts, properties, operations, formulas, and functions, as well as common errors.
Unknown Type
Khan Academy

Khan Academy: Algebra I: Evaluate Piecewise Functions

For Students 9th - 10th
Given the formula of a piecewise function, evaluate it for a specific input. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Handout
CK-12 Foundation

Ck 12: Algebra: Number Lines Study Guide

For Students 9th - 10th Standards
This comprehensive study guide highlights the main terms and formulas needed to review number lines. Examples are included.
Website
Other

Math Bugs Me: Add Subtract Integers

For Students 6th - 8th Standards
This website provides students tips on how to add integers using absolute value and by introducing them to a pattern.
Activity
Lawrence Hall of Science

The Math Page: Topics in Pre Calculus: The Formal Rules of Algebra

For Students 9th - 10th
Here is a site that clearly and thoroughly explains all the rules of algebra from commutative and associative rules through rules for exponents and logarithms. A great review of the important rules from Algebra I and Algebra II! Point...
Activity
University of North Carolina

S University of North Carolina Wilmington: Olving Equations Algebraically

For Students 9th - 10th Standards
Site provides tutorial on solving algebraic equations including radical equations, quadratic equations, polynomial equations, fractional equations, absolute value equations.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphs of Functions Based on Rules

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Students learn to graph a function represented by a rule in the coordinate plane. Students examine guided notes, review guided practice, watch instructional videos...

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