Math Open Reference
Math Open Reference: Number Line
Interactive number line illustrates how as you move to the right the numbers increase and as you move to the left the numbers get more negative.
CK-12 Foundation
Ck 12: Arithmetic: Absolute Value of Integers
[Free Registration/Login may be required to access all resource tools.] Find the absolute value of positive and negative integers.
Other
Msjc: Lesson: The Opposite and the Reciprocal Assignment: The Opposite
Explore opposites and reciprocals through positive and negative numbers and fractions.
Better Lesson
Better Lesson: Inequalities
If a < b, what do we know about a and b? If b < c < d, how could we show that on a number line? Students continue creating inequalities and graphs to represent situations.
Quia
Ixl Learning: Absolute Value
Brush up on your math skills relating to absolute value then try some practice problems to test your understanding.
PBS
Pbs: Using the Pythagorean Theorem on the Cartesian Graph
In this interactive, students use logic and mathematical skill to place animals at the correct points on a Cartesian graph representing the cardinal directions. Then, they use the Pythagorean theorem to determine the distances between...
PBS
Pbs Learning Media: Math + Arts: The Absolute Value of Dance
In this lesson, students use a graph to choreograph a dance figure. Media resources and teacher materials are included.
Help Algebra
Help algebra.com: Addition & Subtraction of Real Numbers
Using a number line, the technique for adding and subtracting real numbers is demonstrated. Notation and calculator use is also touched on at the end of the lesson.
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.
Shmoop University
Shmoop: Basic Operations: Absolute Value
Students learn about absolute value. The resource consists of notes, step-by-step examples, and practice problems with solutions.
Doina Popovici
Math Play: Absolute Value Millionaire Game
Practice finding the absolute value of different numbers and expressions in this millionaire-style game.
Math Is Fun
Math Is Fun: Absolute Value
Find the definition of absolute value as well as many simple examples.
Free Math Help
Free Math Help: Absolute Value
Students learn about the absolute value of a number. The lesson consists of definitions, examples, and additional resources.
Wyzant
Wyzant: Simplifying Multiple Signs Worksheet
Dealing with multiple positive and negative signs in an algebra equation can be a challenge for some students. This inter-active quiz from WyzAnt provides 20 multiple-sign equations and their answers for students to test their knowledge.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Absolute Value
Find a quick, concise explanation of absolute value. Examples are included to help you understand this topic.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Multiply and Divide With Negatives
Find a quick, concise explanation of how to multiply and divide with negative numbers. An example is given and clearly explained for each.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Number Line
Find a quick, concise explanation of a number line. Several examples are given and clearly explained.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Whole Numbers
Find a quick, concise explanation of whole numbers using a diagram. An example is given and clearly explained.
Shmoop University
Shmoop: Basic Operations: Integers
The class notes explore the mathematics topic of integers.
Shmoop University
Shmoop: Basic Operations: Subtracting Integers
Students learn how to subtract integers. The resource consists of notes, detailed examples, and practice problems with solutions.
That Quiz
That Quiz: Recta Numerica
Practice identifying numbers on the number line, distance between two numbers, and graphing inequalities. This page provides four different levels and tracks the number of correct answers.
Math Planet
Math Planet: Understanding Inequalities and Equations
Gain an understanding of how to solve equations by viewing an example and a video lesson.
Khan Academy
Khan Academy: Dividing Negative Numbers Review
Summarizes the rules for dividing with negative numbers, along with examples, and presents three practice questions.