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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.

Adding and Subtracting Fractions with Like Denominators

4th Grade Math

Â» Unit:

Fractions

Big Idea:Fraction strips can be used to help add and subtract fractions with like denominators.

Fraction Jeopardy

4th Grade Math

Â» 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.

Adding Fractions with Unlike Denominators

4th Grade Math

Â» Unit:

Fractions

Big Idea:You can add fractions with unlike denominators by finding a common denominator or by using fraction strips.

Rocking Operations with Fractions - Assessment

4th Grade Math

Â» Unit:

Operations with Fractions

Big Idea:In this lesson students spend the hour taking a written summative assessment of fraction concepts.

Inquiry with Mixed Numbers - How far did she run?

4th Grade Math

Â» Unit:

Operations with Fractions

Big Idea:In this inquiry based lesson students collaborate to solve engaging real world problems in order to add or multiply mixed numbers to whole numbers.

Understand Fractions

4th Grade Math

Â» Unit:

Fraction Equivalents and Ordering Fractions

Big Idea:Students will use fraction strips and begin discovering fractional relationships.

Fractions Review

4th Grade Math

Â» Unit:

Fractions

Big Idea:To review skills learned about fractions, students can solve problems and play games.

Decomposing Pizza Fractions

4th Grade Math

Â» Unit:

Fractions

Big Idea:Students will fold rectangular paper "pizzas" to prove that two fractions can look differently but have the same value.

Subtracting Fractions with Unlike Denominators

4th Grade Math

Â» Unit:

Fractions

Big Idea:You can subtract fractions with unlike denominators by finding a common denominator.

Mixed Number Mystery

4th Grade Math

Â» Unit:

Operations with Fractions

Big Idea:Fractions operations

Fraction Multiplication with Clocks

4th Grade Math

Â» Unit:

Fractions

Big Idea:Students will model how to multiply a fraction and whole number using a clock model, equation, and repeated addition.

Fraction Mii

4th Grade Math

Â» Unit:

Fraction Equivalents and Ordering Fractions

Big Idea:Mii creations! Students continue exploring fractions and extend their previous understanding of comparing fractions in this lesson by participating in an engaging art activity.

Back to Fraction Basics

5th Grade Math

Â» Unit:

Adding and Subtracting Mixed Numbers

Big Idea:This lesson is designed to assist students in clarifying their understanding and developing precision in their reasoning about fractions.

Understand Unit Fractions

4th Grade Math

Â» Unit:

Fraction Equivalents and Ordering Fractions

Big Idea:Students will explore fractional relationships and deepen their understanding of what a fraction is while building fractions from unit fractions.

What I Learned about Fractions Using Voki

4th Grade Math

Â» Unit:

Fractions

Big Idea:Voki is a creative way to get students to assess their own learning about fractions (or any topic), as well as incorporate writing into math.

4.NF.B.3a

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

4.NF.B.3b

Decompose 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.3c

Add 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.3d

Solve 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.