Positive and Negative Numbers

5th - 7th

Contest winner? Use this story about winning tickets to an NFL football game to plot numbers on a number line. Identify positive and negative values in the story and use the worksheet provided to plot out temperature, altitude, and money values. Then, have a discussion about numbers plotted to the left of zero and numbers to the right of zero.

Resource Details

Instructional Design
Collaborative Learning
45 mins

Illustrating Values

Collaborators create a presentation, poster, or a simple diagram to demonstrate a positive and negative number range. What makes this vivid is that sea level is zero and the values are altitudes at which various animals live, both above and below the water.

Intro to Adding/Subtracting Rational Numbers

Masterminds get creative by translating a story into a math problem. The story is about Joe and his summer job. Learners will practice applying operations to rational numbers in order to figure out his daily profit over two weeks. 

Intro to Adding/Subtracting Rational Numbers

Here is a lesson that will help you meet seventh grade math Common Core skills standards. Learners work in collaborative groups to solve a real-world scenario using the subtraction of rational numbers. They jigsaw into other groups and display their solutions on a number line. Although the lesson plan includes the use of the Geometer's Sketchpad® application, it can be taught sufficiently without it. Note that there is not a lot of teacher support in this write-up, and that you will need to create your own homework problems to assign as reinforcement.

Place Value of Decimals to Hundredths: Diving for Decimals

Constructing decimals correctly is a crucial concept for elementary learners to grasp. Here, have the young mathematicians in your class explore standard and expanded form while comparing decimal values. This unit is taught while examining Olympic events.

Handling Numbers

In this handling numbers worksheet, students order numbers, match place value positions, multiply fractions, match percents with fractions, find quantities, determine factors and multiples, even, odd, squared and prime numbers.

Multiplying and Dividing Negative Numbers

Ease your class into pre-algebra with this video, which demonstrates multiplication and division problems involving negative numbers. Sal reiterates the rules of positive and negative numbers in different types of equations, then goes back to clarify with examples when he senses he might have confused his viewers.

Absolute Value 1

Several examples of positive and negative numbers in their absolute value are plotted on a number line.

How Do You Subtract a Negative Number from a Positive Number?

Subtracting an integer is as simple as adding the opposite value. Watch this video to see an example of how to change the signs and then add the two integers.

Understanding Place Value

Students participate in a hands-on activity to practice finding the place value of numbers. Students listen to the story, The Warlord's Beads, to examine how place value helps them examine large numbers. Students use various manipulatives to create their own number strands with which to practice.

Number Wizards! Lesson Plan

Students play a game in which they build and compare large numbers to learn place value. They use place value to read, write and compare large numbers.

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