Adding Integers

Grade 7 / Math / Engagement
CCSS: Math.7.NS.A.1c

Common Core State Standards




Grade 7


The Number System


Apply and extend previous understandings of operations with fractions


Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.

a. Describe situations in which opposite quantities combine to make 0. For example, a hydrogen atom has 0 charge because its two constituents are oppositely charged.

b. Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts.

c. Understand subtraction of rational numbers as adding the additive inverse, p – q = p + (–q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts.

d. Apply properties of operations as strategies to add and subtract rational numbers.

Download Common Core State Standards (PDF 1.2 MB)
Lesson Objective
Add and subtract integers using a number line and a song with motions
14 min
Questions to Consider
How does Mr. Kajitani use rap music to reinforce math concepts and build class culture?
What specific strategies does Mr. K use to refocus students' attention?
How does the real life context help make mathematical concepts approachable for students?
Support Materials Below
Adding Integers Presentation

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  • Transcript for Tough to Teach – Adding Integers

  • Adding Integers Presentation

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