Curated OER
Incredible Integers!
There are three parts to this lesson on integers. In the first, learners explore positive and negative numbers on an actual painter's tape number line and by playing a "Hot Seat" game. In part two, they view a BrainPop video and work...
Curated OER
The Additive Inverse, or the Opposite of a Number
This resource would actually be best used as a projection when teaching about additive inverses. The first "page" shows on a number line how 6 and -6 get you to zero. The second supplies an opportunity for viewers to apply the concept to...
Eisenhower Regioanl Consortium for Mathematics and Science Education
Lesson 10: Integer Addition and Subtraction (for the TI-73 only)
Using a number line on the floor made from masking tape and manipulatives, learners observe a demonstration of the addition and subtraction processes. After completing several worksheets, they solve three-term problems using calculators...
Curated OER
Integers - A PowerPoint Presentation
Math fans review the rules of working with integers. For each basic operation (addition, subtraction, multiplication, and division, the rule for working with integers is explained for cases in which the numbers have the same sign as well...
Curated OER
SPIRIT 2.0 Lesosn: Adding and Subtracting Integers
Six pages prepare you to introduce your math stars to the addition and subtraction of positive and negative numbers. They drive a robot back and forth on an actual number line to represent the operations. If you don't have access to a...
Alabama Learning Exchange
Battle to the Death: Adding Integers
Young scholars explore the concept of adding integers. For this adding integers lesson, students simulate the battle of the 300 spartans at Thermopylae. Young scholars use colored game pieces to represent positive and negative...
Alabama Learning Exchange
Calendar Fun Operations
Middle schoolers explore the concept order of operations. In this order of operations lesson, students make a song about the order of operations in groups. Middle schoolers practice working problems using order of operations.
AAA Math
Aaa Math: Inverse Relationship of Addition & Subtraction
There is a great interactive problem set for students to practice the concept of the inverse property. This would be a great review before a unit on solving basic equations.
Goodwill
Gcf Global: What Are Negative Numbers?
Learn all about negative numbers, which are any number less than zero.
OER Commons
Oer Commons: The Effects of Positive & Negative Numbers
Seventh graders explore what happens to a hot air balloon when they add or remove units of weight or heat. This activity is an informal exploration of addition and subtraction with positive and negative integers.
Government of Alberta
Learn alberta.ca: Mathematics Glossary: Additive Inverse
The Mathematics Glossary defines additive inverse and gives several examples to illustrate the concept.
AAA Math
Aaa Math: Subtracting Negative and Positive Integers
Read through the given information on subtracting negative and positive integers, and try to solve some integer problems.
National Council of Teachers of Mathematics
Nctm: Illuminations: Volt Meter
As you put the different type of batteries on the volt meter pay attention to the voltage equations in the table. See how positive and negative numbers interact.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Adding Real Numbers
A good refresher of how to perform addition of real numbers. Covers how to add numbers of same sign and of the different sign, and how to find the additive inverse of a number. View several example problems and step-by-step solutions and...
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Multiplying and Dividing Real Numbers
A good refresher on multiplication and division of real numbers. Covers finding the reciprocal and performing multiplication with positive and negative numbers and zero.
Wikimedia
Wikipedia: Additive Inverse
What is additive inverse? It means "opposite." Find out more about this concept in this detailed definition with examples and links to related terms.
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.
Virtual Nerd
Virtual Nerd: Recognize Opposite Signs of Numbers
Use the number line to recognize the opposite of a number.
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.
Illustrative Mathematics
Illustrative Mathematics: 7.ns Distances on the Number Line 2
For this lesson, 7th graders add and subtract rational numbers on a number line.
Illustrative Mathematics
Illustrative Mathematics: 7.ns Operations on the Number Line
A number line is shown below. The numbers $0$ and $1$ are marked on the line, as are two other numbers $a$ and $b$. Aligns with 7.NS.A.1.
Mangahigh
Mangahigh: Number: Add and Subtract With Integers
Add and subtract positive and negative numbers.
Mangahigh
Mangahigh: Number: Use Negative Numbers
Test your knowledge of positive and negative numbers.
Mangahigh
Mangahigh: Number: Addition and Subtraction
Add and subtract positive and negative numbers.