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

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.

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

How can you add two numbers and arrive at zero? Use negative integers! Assign each group a different problem to solve as a team. The lesson plan says to have them use Geometer's Sketchpad® to check their answers, but if you do not have this software, you could have the groups trade problems to correct each other's. In the end, you will use the problems to demonstrate how p+q is equal to |q| from p, thus meeting one of the seventh grade math Common Core standards. Note that this resource does not provide the answers to the assigned problems or a homework assignment even though it is suggested.

Place Value of Decimals to Hundredths: Diving for Decimals

Constructing decimals correctly is a crucial concept for elementary young scholars 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.

Absolute Value 1

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

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.

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.

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.

Be the first to comment

Join Lesson Planet Community, our free teacher discussion forum, to share ideas about this resource, and more.

Join the Conversation

Featured Testimonial

Lynn C.
As the International Teacher for Miina Härma Gumnaasium in Tartu, Estonia, I teach classes in English that include children from Estonia, Romania, Latvia, Lithuania, and even Pakistan besides Britain and the United States. Lesson Planet helps me find many worksheets and lessons that feature hands-on activities, good graphic organizers, clear, simple language and diagrams, step-by-step math explanations. It is basically very useful for helping a teacher with a largely ESL population. Moreover, I must develop my own teaching materials since I follow the Estonian national curriculum PLUS the national standards of the students, which can be difficult to reconcile together -- never mind, trying to find a textbook that suits (and, I might add, English-language texts are not easily obtainable here).
Lynn C., Teacher
Wakefield, RI