Texas Instruments
Texas Instruments: Numb3 Rs: How Reliable Is the Test?
Based off of the hit television show NUMB3RS, this lesson shows students how conditional probability can be used in the real world and can, in fact, impact them. The lesson is framed around drug users and drug tests (namely, steroids)....
PBS
Pbs Learning Media: Cyberchase: Competing for the Northern Hemisphere Games
In this short Cyberchase video, students learn about positive and negative numbers as Harry tries to score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans. [3:24]
Khan Academy
Khan Academy: Substitution With Negative Numbers
Practice plugging in values to evaluate negative number addition and subtraction expressions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Purple Math
Purplemath: Solving Inequalities: An Overview
A discussion on how to solve linear and nonlinear inequalities is presented. Both the Test Method and the Factor Method of checking positive/negative intervals are included as part of the discussion.
NumberNut
Number Nut: Subtraction: Two Digit Subtraction With Negatives
A quiz for practicing subtraction of two-digit numbers where some of the answers may be negative numbers.
AAA Math
Aaa Math: Evaluating Exponents of Negative Numbers
This site explains how to evaluate exponents of positive and negative numbers. The site provides games and exercises to practice the skill.
Discovery Education
Discovery Education: Web Math: Using a Number Line
This WebMath site provides an interactive number line "solver." Content includes helpful hint and a full explanation of the mathematical solution.
Other
Mathsframe: Sequences
Students can solve number sequences and skip count with positive and negative whole numbers and decimals.
BBC
Bbc: Skillswilse: The Number Line
This Skillswise site focuses on number lines. Included is a video about how to use number lines, fact sheets and worksheets for instruction, and quizzes on the information presented. Be aware that this is from Great Britain, so any games...
Khan Academy
Khan Academy: Practice: Adding Negative Numbers
Practice adding one-digit positive and negative numbers.
Calculator Soup
Calculator Soup: Common Factors Calculator
This calculator factors a set of positive integers to find the common factors (common divisors) of those integers. Enter the set of numbers you want to factor separating them with commas.
ClassFlow
Class Flow: Multiply and Divide by 100
[Free Registration/Login Required] These pages provide opportunities to practice multiplying and dividing positive integers up to 10,000.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Rational Numbers
A guide to support parents as they work with their students in rational numbers.
Virtual Nerd
Virtual Nerd: Recognize Opposite Signs of Numbers
Use the number line to recognize the opposite of a number.
University of Cambridge
University of Cambridge: Maths and Sports: Swimming Pool
We're investigating the number of steps we would climb up or down to get out of or into the swimming pool. How could you number the steps below the water? This activity uses the familiar environment of a swimming pool to introduce...
Khan Academy
Khan Academy: Interpreting Negative Numbers
In this exercise, students practice interpreting negative numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
CK-12 Foundation
Ck 12: Algebra: Equations With Decimals
[Free Registration/Login may be required to access all resource tools.] Solve multi-step equations that involve decimals
Khan Academy
Khan Academy: Interpreting Negative Numbers
Practice explaining the meaning of negative numbers in different scenarios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Utah Education Network
Uen: Ordering and Computing With Negative Fractions and Decimals
This lesson plan allows young scholars to practice comparing and ordering rational numbers on a number line as well as computing with fractions and decimals. It provides an assessment plan and attachments for the instructional activity's...
Arcademics
Arcademics: Integer Warp
Idenitfy the correct answer based upon the given integer multiplication problem.
Alabama Learning Exchange
Alex: How Low Can You Go?
In this lesson, young scholars will identify and locate numberspostive and negative numbers, including decimals and fractions on a number line. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: High School Basic Algebra Review
An overview of basic high school algebra topics can be found here. Absolute value, signed numbers, inequalities and equations, mixture problems, and direct and indirect variation are all listed, each with links to questions posed by...
Lesson Tutor
Lesson Tutor: A Beginning Look at Basic Algebra
Twelve lessons are provided as an introduction to basic algebra. Each covers the topic clearly, providing examples with explanations as well as practice problems and their solutions for the user. Topics highlighted here include: solving...