7.NS.A.1

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.

 
50 Lesson(s)
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Modeling Addition - Opposites Attract, You Know?!

7th Grade Math » Unit: Operations with Rational Numbers
7th Grade Math » Unit: Operations with Rational Numbers
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Do opposites really attract? Read more to find out…

 
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Reflections (1)
modeling
   

Those Negative Numbers

8th Grade Math » Unit: Number Sense
8th Grade Math » Unit: Number Sense
Mauricio Beltre
Orlando, FL
Environment: Urban
 
Big Idea:

Through well thought out questions and engaging activities, students can revisit handling operations with signed numbers

 
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Reflections (2)
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Add and subtract positive and negative numbers

8th Grade Math » Unit: FLUENCIES AND THE LANGUAGE OF ALGEBRA
8th Grade Math » Unit: FLUENCIES AND THE LANGUAGE OF ALGEBRA
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Good guys and bad guys? Use Spiderman and Venom (and Street Fighter 2) to illustrate the idea of adding and subtracting positive and negative numbers.

 
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Reflections (1)
1 2 bl image
   

Integers Assessment

7th Grade Math » Unit: Rational Number Operations
7th Grade Math » Unit: Rational Number Operations
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

Students take a test that assesses computation of integers, integer concepts, and problem solving. A rubric and answer guide is included.

 
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examinprogress
   

Adding and Subtracting Integers with Counters

6th Grade Math » Unit: Integers and Rational Numbers
6th Grade Math » Unit: Integers and Rational Numbers
Andrea Palmer
Somerville, MA
Environment: Urban
 
Big Idea:

What are opposites and what happens when you add them together? How can you use counters to model 7-9? What about 3 – (-3)? Students work with counters to model adding and subtracting integers.

 
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unit 3 5 image 6 4
   

Assessment - Fluency and Concepts of Integer Sums and Differences

7th Grade Math » Unit: Rational Number Operations
7th Grade Math » Unit: Rational Number Operations
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

This test assesses a students understanding of integer addition and subtraction through fluency, concepts, and problem solving.

 
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Resources (11)
 
Reflections (1)
images 5
   

Adding and Subtracting Signed Decimals Using a Procedure

7th Grade Math » Unit: Rational Number Operations
7th Grade Math » Unit: Rational Number Operations
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

Students use addition and subtraction procedures as a step toward fluency with signed decimal operations.

 
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images 8
   

Adding and Subtracting Integers - Real World Applications

7th Grade Math » Unit: Operations with Rational Numbers
7th Grade Math » Unit: Operations with Rational Numbers
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

You can add. You can subtract. BUT can you identify which to do and carry out the right rules? This lesson give you practice with just that.

 
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Reflections (1)
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Adding and Subtracting Positive and Negative Fractions on a Numberline

7th Grade Math » Unit: Rational Number Operations
7th Grade Math » Unit: Rational Number Operations
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

Do sums of positive and negative fractions behave the same way as integers? Students explore this question using (mostly) common denominator fractions and a number line.

 
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670px compare and order fractions step 1bullet2
   

Adding and Subtracting Integers on a Number Line

6th Grade Math » Unit: Integers and Rational Numbers
6th Grade Math » Unit: Integers and Rational Numbers
Andrea Palmer
Somerville, MA
Environment: Urban
 
Big Idea:

What happens when you add positive 5 and negative 3? What happens when you subtract positive 2 from negative 3? Students work with a number line and football to model adding and subtracting integers.

 
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Resources (39)
 
Reflections (6)
unit 3 4 image
   

Integer Addition Word Problems - Can You Picture It? (Two Day Lesson)

7th Grade Math » Unit: Operations with Rational Numbers
7th Grade Math » Unit: Operations with Rational Numbers
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Can you picture integer addition? Students will use drawings, number lines, and chips to visualize integer addition word problems.

 
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img 0623
   

Adding and Subtracting Positive and Negative Decimals on a Numberline

7th Grade Math » Unit: Rational Number Operations
7th Grade Math » Unit: Rational Number Operations
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

Do sums of positive and negative decimals behave the same way as integers? Students explore this question with tenths on a number line.

 
Favorites (5)
 
Resources (12)
download 8
   

Adding Integers by Walking it Out

7th Grade Math » Unit: Integers
7th Grade Math » Unit: Integers
Malissa Thomas-St.Clair
Columbus, OH
Environment: Urban
 
Big Idea:

Develop students' number sense by physically modeling the process of adding and subtracting integers on a number line..

 
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Resources (24)
 
Reflections (1)
adding integer walking out strategy
   

Addition and Subtraction of Integers - DOMINOES!

7th Grade Math » Unit: Operations with Rational Numbers
7th Grade Math » Unit: Operations with Rational Numbers
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Perfecting skills is important - this lesson gives students an opportunity to hone their skills.

 
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Resources (13)
 
Reflections (1)
img 0681
   

Adding and Subtracting Integers Test

7th Grade Math » Unit: Operations with Rational Numbers
7th Grade Math » Unit: Operations with Rational Numbers
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

See the fruits of your labor as students demonstrate what they know on an Adding and Subtracting Integers Test.

 
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Resources (16)
 
Reflections (1)
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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.

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.

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.

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

Common Core Math
 
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