Illustrative Mathematics
Above and below sea level
Using the real-world example of elevation, above or below sea level, young mathematicians interpret expressions using negative signs, and absolute value. This task provides a good opportunity to discuss the notion of magnitude and...
Yummy Math
Hot Summer. . . Cold Winter
A table of each state's record temperature reports data that middle schoolers can place on a number line for analysis. A written explanation of how to use this tool and the concept of absolute value are also included. Nine questions are...
Illustrative Mathematics
Jumping Flea
Mathematics minors consider the magnitude of a jumping flea as he hops from place to place. Through this exercise, they will investigate absolute values, as well as positive and negative rational numbers on a number line. The first page...
Agile Mind
Cake Weighing
An online set of four yummy questions addresses number sense for sixth graders. They place points on a number line, determine relative values, interpret absolute value, and apply their understanding to the weighing of cakes for a bakery....
Yummy Math
Curiosity Landed on Mars
Out of this world math and science are mixed together on a activity that would be a great enrichment activity classrooms that are studying our solar system. The information presented is best suited toward middle school math, and...
Curated OER
Questioning NASA
Space science and math collide in this inquiry that investigates launching times for antacid-tablet rockets! Upper elementary or middle school learners collect data as they launch these mini rockets. They apply concepts of place value...
National Security Agency
Ordering, Adding and Subtracting Integers
Prealgebrarians use colored chips, stickers, and pencils to explore the world of integers. They discover absolute value, compare positive and negative integers, and apply operations to them. A detailed procedure for the three-part...
Courseware Solutions
Integers: A Real World Rational Numbers Application
Given centigrade temperatures for pairs of cities, math-minded meteorologists determine which is either warmer or colder. The worksheet is embedded in a website from which you can access an answer key or even change the cities and...
Houghton Mifflin Harcourt
Math Skiils: Comparing Integers on a Number Line
Here is an attractive assignment that instructs learners how to compare more than one integer on a number line. After the lesson, three practice problems follow. They require learners to place integers on a number line and then order...
Curated OER
Working with Integers
In this integers worksheet, students compare the pairs of integers and mark either less than or greater than to show which number is greater. The first two are done for the students. The second part of the worksheet asks the students to...
Curated OER
Unit 5 Lesson 01: Graphing on a Number Line
Math masters are introduced to graphing inequalities on a number line. After reviewing inequality symbols, they practice representing them on a worksheet. This simple lesson serves its purpose.
Curated OER
Circles in the Landscape: Irrigating Oklahoma Crops
How do you grow crops in a area with insufficient rainfall? Why you irrigate, of course. Class members investigate irrigation systems by designing a system of their own. After examining irrigation related concepts, vocabulary terms, and...
Curated OER
Managing Nutrients in Livestock Manure
Livestock managers reinforce math and science skills while learning about the nutrients found in manure. They predict which animal produces the largest amount and which animal's manure contains the most nitrogen. Finally, they compare...
University of South Florida
Fcat: Human Number Line: Teacher Notes
This activity allows learners to physically create a number line and work on adding and subtracting integers. This lesson can be adapted to include other concepts with real numbers.
Wolfram Research
Wolfram Math World: Absolute Value
Defines the concept of absolute value in a variety of mathematical methods and difficulties. Includes special links for further investigation.
Math Medics
S.o.s. Math: Absolute Value Inequalities
After explaining the geometric definition of absolute value, this lesson will guide you through several examples in solving inequalities that involve absolute value. Practice exercises and their solutions are also included.
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.
Soft Schools
Soft Schools: Rational Numbers on the Number Line
Practice placing negative and positive numbers on a number line in this interactive self-correcting quiz.
J Coffman
Joseph Coffman's Lecture Notes: Solving Absolute Value Equations
The lesson examines solving absolute value equations and inequalities. Students learn about extraneous solutions, conjunctions, and disjunctions. Definitions, formulas, examples, and a quiz are included.
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 and Absolute Value
This site gives a short interactive quiz which allows students to self-assess their understanding of integers and absolute value.
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.
Khan Academy
Khan Academy: Equivalent Expressions With Negative Numbers
Practice identifying equivalent expressions involving the addition and subtraction of negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Comparing Positive and Negative Numbers on the Number Line
In this exercise, students practice comparing positive and negative numbers on the number line. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.