National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Numbers
Math Forum response to request for information on various number sets. Also defined and discussed are integers, natural numbers, whole numbers, irrational numbers, transcendental numbers, and algebraic numbers.
Texas Instruments
Texas Instruments: Adding Integers a Modeling Approach
This activity is a first glimpse into how to add integers. It is a modeling approach that will leave students with a mental image of the result of adding integers so they will be able to add integers without creating the model.
Texas Instruments
Texas Instruments: Number Sets
When you start this activity, students receive a Venn diagram of real number sets (natural, whole, integer, rational, irrational)on their calculator. This same diagram is projected on the Activity Center screen at the front of the room....
Texas Instruments
Texas Instruments: Division of Integers
Students use StudyCards(tm) to practice completing division equations that include positive and negative integers.
Texas Instruments
Texas Instruments: Names for 100
Students will use the calculator to carry out operations of addition, subtraction, division, and multiplication on integers, fractions, and decimals to find mathematical expressions that equal 100.
Texas Instruments
Texas Instruments: Names for One Half
In this activity, students use their understanding of integers, fractions, decimals, and operations to find mathematical expressions that equal one-half.
Texas Instruments
Texas Instruments: Touchdown!
This activity uses two different models to provide students a context to develop meaning of integers.
Texas Instruments
Texas Instruments: Number Smash
In this activity, students explore basic Algebra concepts and Number sense. They learn the definition of sign numbers, absolute value, and numbers of opposite sign.
Ministerio de Educación (Spain)
Ministerio De Educacion: Conecto Con Las Mates
These are five interactive units for Elementary math. Each unit is structured in four parts: explanation, activities, dictionary and assessment.
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.
Math Is Fun
Math Is Fun: Definition of Absolute Value
Get the definition for Absolute Value. Then, move the slider along the interactive number to see examples. Click on the link, "here's more" for more information.
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.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Los Juegos en Las Matematicas
In Spanish. This interactive unit brings games to the math classroom. The games will give you a chance to practice algebra and probability. These games could be adapted to different levels with small variation.
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.
CK-12 Foundation
Ck 12: Elem Math: Comparing Numbers Using Greater Than and Less Than
[Free Registration/Login may be required to access all resource tools.] Students practice comparing numbers using greater than and less than.
Other
Operations on Integers
MATHguide includes rules for addition/subtraction of integers and multiplication/division of integers in this descriptive lesson on integers.
Other
Tufts University: Early Algebra, Early Arithmetic
This online resource is from the Tufts University offers lesson plans, worksheets, and ideas about using algebra with elementary grade levels.
Saddleback College
Algebra2 Go: Prealgebra
The resource consists of comprehensive learning tools such as class notes, video lectures, and templates through which students can review prealgebra topics.
Quia
Quia: Percent Problems
A Jeopardy game tests students' knowledge of fractions, decimals, percents, integers, and combining like terms. Play with one or two players.
Scholastic
Scholastic: Study Jams! Math: Numbers: Integers
This site provides great practice on the concept of integers. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can practice their knowledge by...
Math Planet
Math Planet: Pre Algebra: Absolute Value
Gain an understanding of absolute value by viewing examples and a video lesson. [0:58]
McGraw Hill
Glencoe Mathematics: Online Study Tools: Integers
The online assessment demonstrates knowledge of advanced mathematical concepts in Algebra. The multiple choice questions test students on integers. Topics include performing operations with integers and graphing.
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.