Adding Integers
Common Core State Standards
Math 
Math 
7 
Grade 7 
NS 
The Number System 
A 
Apply and extend previous understandings of operations with fractions 
1c 
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 realworld 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 realworld contexts. d. Apply properties of operations as strategies to add and subtract rational numbers. 
Download Common Core State Standards (PDF 1.2 MB) 

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 143
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 9
 Lesson Objective
 Add and subtract integers using a number line and a song with motions
 Length
 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
Teacher & School Info
 School Details
 Mission Middle School Escondido, CA
 Population
 951 students
 District Spending
 $8,062
Supporting Materials

Transcript for Tough to Teach – Adding Integers

Adding Integers Presentation