Khan Academy
Khan Academy: Integer Addition and Subtraction With Substitution
In this exercise, students practice integer addition and subtraction with substitution. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Better Lesson
Better Lesson: Adding and Subtracting Integers With Counters
What are opposites and what happens when you add them together? Students work with counters to model adding and subtracting integers.
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: Rational Numbers on the Number Line
Practice placing positive and negative fractions and decimals on the number line. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Purple Math
Purplemath: Introduction to Negative Numbers
This lesson from Purplemath.com reviews negative numbers and their operations. Number lines are used for demonstration.
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.
ClassFlow
Class Flow: Order Negative
[Free Registration/Login Required] The teacher will use this lesson plan flipchart to review positive and negative numbers.
Oswego City School District
Regents Exam Prep Center: Signed Numbers
This tutorial on signed numbers features lesson plans, practice pages, examples, application problems, and interactive work. Teacher resources include overhead manipulatives, card games, a Bingo game, and graphing calculator downloads.
Beacon Learning Center
Beacon Learning Center: Anti Toast
Students explore positive and negative numbers in this interactive web lesson. Learning exercises are provided for students to practice adding integers.
Mangahigh
Mangahigh: Number: Use Negative Numbers
Test your knowledge of positive and negative numbers.
Alabama Learning Exchange
Alex: The Path to Positive
Using the story Less than Zero by Stuart Murphy, middle schoolers relate money matters to positive and negative numbers as a real-life correlation. Incorporated into this lesson plan, students play the path to positive game where they...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Integer Addition
Get independent practice adding integers. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Integer Multiplication and Division
Get independent practice multiplying and dividing integers. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Other
Msjc: Lesson: The Opposite and the Reciprocal Assignment: The Opposite
Explore opposites and reciprocals through positive and negative numbers and fractions.
Mangahigh
Mangahigh: Number: Addition and Subtraction
Add and subtract positive and negative numbers.
Alabama Learning Exchange
Alex: Positively f.u.n. !
This lesson will actively engage students to identify and add positive and negative integers. In cooperative groups, students will discuss everyday vocabulary that will activate students' existing background knowledge and set the purpose...
Knowledge Share
Super Kids: Addition and Subtraction Worksheet Creator
Create your own addition/subtraction math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and...
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...
Mangahigh
Mangahigh: Wrecks Factor: Factor Simple and Harder Quadratics
In this game, you must send rescuers to ships trapped in the Bermuda Triangle by first decoding their coordinates that were given to you as quadratic expressions. As you decode the coordinates, you must draw a search area on a grid that...
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Multiplication Cards, Fill in the Blank
Students type the correct positive or negative number to complete the multiplication problems on these interactive flashcards. The problem changes color when the correct number is typed.
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.
Varsity Tutors
Varsity Tutors: Aplusmath: Addition, Subtraction, Multiplication, Division With Negative Numbe
Learners create flashcards to practice addition, subtraction, multiplication, and division with negative numbers.
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.
ClassFlow
Class Flow: Multiplication and Division of Positive and Negative Numbers
[Free Registration/Login Required] This flipchart outline multiplication and division rules for positive and negative numbers and gives examples and problems for students and teachers.