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K-5 Grade 2 Unit 4

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•K-5 Math 6-8 Math 9-12 Math

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Kindergarten Grade 1 •Grade 2 Grade 3 Grade 4 Grade 5

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Unit 1 Unit 2 Unit 3 •Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 Unit 9

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Unit 4

Addition and Subtraction on the Number Line

Section A

The Structure of the Number Line

Whole Numbers on the Number Line

Let’s represent numbers on a number line.

Features of a Number Line

Let’s explore the features of a number line.

Unlabeled Tick Marks

Let’s locate numbers on the number line.

Section B

Add and Subtract on a Number Line

Addition and Subtraction on the Number Line

Let’s match equations to number lines.

Equations on a Number Line

Let’s write equations and represent them on a number line.

The Difference between Numbers

Let’s represent ways to subtract on the number line.

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Unit 4 Resources

Family Materials

4

Compare Numbers on a Number Line

Let’s use the number line to compare numbers.

Estimate on a Number Line

Let’s estimate numbers on a number line.

Center Day 1

Let’s put numbers on a number line.

4

Place Value and the Number Line

Let’s compare methods using the number line.

Different Ways to Add and Subtract

Let’s add and subtract by using a ten.

Equations with Unknowns

Let’s represent addition and subtraction with number lines and with equations using a ? for the unknown.

Represent Story Problems

Let’s compare representations and solve problems.

Center Day 2

Let’s practice adding and subtracting using the number line.

Tall Enough to Ride

Let’s find out what amusement park rides people are tall enough to ride.

Section B

Add and Subtract on a Number Line

Addition and Subtraction on the Number Line

Let’s match equations to number lines.

Equations on a Number Line

Let’s write equations and represent them on a number line.

The Difference between Numbers

Let’s represent ways to subtract on the number line.

Place Value and the Number Line

Let’s compare methods using the number line.

Different Ways to Add and Subtract

Let’s add and subtract by using a ten.

Equations with Unknowns

Let’s represent addition and subtraction with number lines and with equations using a ? for the unknown.

Represent Story Problems

Let’s compare representations and solve problems.

Center Day 2

Let’s practice adding and subtracting using the number line.

Tall Enough to Ride

Let’s find out what amusement park rides people are tall enough to ride.

Section B Practice Problems

Section A

The Structure of the Number Line

Whole Numbers on the Number Line

Let’s represent numbers on a number line.

Features of a Number Line

Let’s explore the features of a number line.

Unlabeled Tick Marks

Let’s locate numbers on the number line.

Compare Numbers on a Number Line

Let’s use the number line to compare numbers.

Estimate on a Number Line

Let’s estimate numbers on a number line.

Center Day 1

Let’s put numbers on a number line.

Section A Practice Problems