4.NF.B.3a

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- 4.NF.B.3aUnderstand addition and subtraction of fractions as joining and separating parts referring to the same whole.
- 4.NF.B.3bDecompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a visual fraction model. Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/8 ; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8.
- 4.NF.B.3cAdd and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.
- 4.NF.B.3dSolve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

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## 4.NF.B.3a

## Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.

26 Lesson(s)

### Adding and Subtracting Fractions with Like Denominators

4th Grade Math »
Unit: Fractions

4th Grade Math »
Unit: Fractions

### Fraction Jeopardy

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

Big Idea:

#### In this lesson, students play a jeopardy game using a smart board, to review important fraction concepts. Students will complete a fraction assessment in the near future, so this is an important lesson for me to gauge students' abilities and skills.

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### Adding Fractions with Unlike Denominators

4th Grade Math »
Unit: Fractions

4th Grade Math »
Unit: Fractions

### Rocking Operations with Fractions - Assessment

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Inquiry with Mixed Numbers - How far did she run?

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Understand Fractions

4th Grade Math »
Unit: Fraction Equivalents and Ordering Fractions

4th Grade Math »
Unit: Fraction Equivalents and Ordering Fractions

### Subtracting Fractions with Unlike Denominators

4th Grade Math »
Unit: Fractions

4th Grade Math »
Unit: Fractions

### Mixed Number Mystery

4th Grade Math »
Unit: Operations with Fractions

4th Grade Math »
Unit: Operations with Fractions

### Fraction Mii

4th Grade Math »
Unit: Fraction Equivalents and Ordering Fractions

4th Grade Math »
Unit: Fraction Equivalents and Ordering Fractions

### Fraction Multiplication with Clocks

4th Grade Math »
Unit: Fractions

4th Grade Math »
Unit: Fractions

### Back to Fraction Basics

5th Grade Math »
Unit: Adding and Subtracting Mixed Numbers

5th Grade Math »
Unit: Adding and Subtracting Mixed Numbers

### Understand Unit Fractions

4th Grade Math »
Unit: Fraction Equivalents and Ordering Fractions

4th Grade Math »
Unit: Fraction Equivalents and Ordering Fractions

### What I Learned about Fractions Using Voki

4th Grade Math »
Unit: Fractions

4th Grade Math »
Unit: Fractions

Common Core Math

### Kindergarten

### First Grade

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### HS Number & Quantity

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### HS Geometry

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### Ninth and Tenth Grade

### Kindergarten

### First grade

### Second grade

### Third Grade

### Fourth grade

### Fifth grade

### Middle School

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

HS Number & Quantity

HS Algebra

HS Functions

HS Geometry

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

Eighth Grade

Ninth and Tenth Grade

Kindergarten

First grade

Second grade

Third Grade

Fourth grade

Fifth grade

Middle School