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- 7.NS.A.1Apply 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.
- 7.NS.A.2Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers.
- 7.NS.A.3Solve real-world and mathematical problems involving the four operations with rational numbers. (Computations with rational numbers extend the rules for manipulating fractions to complex fractions.)

Modeling Addition - Opposites Attract, You Know?!

7th Grade Math

» Unit:

Operations with Rational Numbers

Big Idea:Do opposites really attract? Read more to find out…

Those Negative Numbers

8th Grade Math

» Unit:

Number Sense

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

Add and subtract positive and negative numbers

8th Grade Math

» Unit:

FLUENCIES AND THE LANGUAGE OF ALGEBRA

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.

Integers Assessment

7th Grade Math

» Unit:

Rational Number Operations

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

Adding and Subtracting Integers with Counters

6th Grade Math

» Unit:

Integers and Rational Numbers

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.

Assessment - Fluency and Concepts of Integer Sums and Differences

7th Grade Math

» Unit:

Rational Number Operations

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

Adding and Subtracting Signed Decimals Using a Procedure

7th Grade Math

» Unit:

Rational Number Operations

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

Adding and Subtracting Integers - Real World Applications

7th Grade Math

» Unit:

Operations with Rational Numbers

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.

Adding and Subtracting Positive and Negative Fractions on a Numberline

7th Grade Math

» Unit:

Rational Number Operations

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.

Adding and Subtracting Integers on a Number Line

6th Grade Math

» Unit:

Integers and Rational Numbers

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.

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

7th Grade Math

» Unit:

Operations with Rational Numbers

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

Adding and Subtracting Positive and Negative Decimals on a Numberline

7th Grade Math

» Unit:

Rational Number Operations

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.

Adding Integers by Walking it Out

7th Grade Math

» Unit:

Integers

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

Addition and Subtraction of Integers - DOMINOES!

7th Grade Math

» Unit:

Operations with Rational Numbers

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

Adding and Subtracting Integers Test

7th Grade Math

» Unit:

Operations with Rational Numbers

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

7.NS.A.1a

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.

7.NS.A.1b

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.

7.NS.A.1c

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.

7.NS.A.1d

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