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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.

Rocking Operations with Fractions - Assessment

4th Grade Math

» Unit:

Operations with Fractions

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

Fractions and Art - Sol LeWitt Style

4th Grade Math

» Unit:

Fraction Equivalents and Ordering Fractions

Big Idea:In this lesson, students use chalk, black paper, and fraction knowledge to create beautiful and unique pieces of artwork.

Cats and Strawberries - Inquiry with Subtracting Mixed Numbers

4th Grade Math

» Unit:

Operations with Fractions

Big Idea:In this lesson, students review strategies for adding mixed numbers and then work through how to subtract mixed numbers in an inquiry type of approach.

Fraction Multiplication with Clocks

4th Grade Math

» Unit:

Fractions

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

Multliplying Fractions with Whole Numbers Day 2

4th Grade Math

» Unit:

Operations with Fractions

Big Idea:In this lesson students work in small groups to multiply a fraction with a whole number and then participate in a math gallery walk in order to deepen their understanding of fraction concepts.

Applying Prior Strategies to Fraction Word Problems Involving Multiplication to the Whole

4th Grade Math

» Unit:

Fractions 3 Mini Unit: Multiplying Fractions by Whole Numbers

Big Idea:Students explore using manipulatives, fractional models and word problem strategies from the past to solve word problems.

Measuring & Comparing the Lengths of Objects

4th Grade Math

» Unit:

Fractions

Big Idea:Students will use a ruler to measure everyday objects. Then, they will compare the lengths of the objects by adding and subtracting.

Fraction CARD GAME

4th Grade Math

» Unit:

Operations with Fractions

Big Idea:In this lesson, students work with partners to play a card game in which they can refine and practice the skill of multiplying a fraction with a whole number.

Shopping and Pondering Pounds and Ounces

4th Grade Math

» Unit:

Measurment

Big Idea:In this task, students will participate in an activity that helps them convert and add ounces and pounds.

Pencil Measurements

4th Grade Math

» Unit:

Fractions

Big Idea:Students will measure various pencils to the nearest 1/4 inch, make a line plot, and solve problems involving addition and subtraction of fractions.

Modeling with Box Diagrams on the iPad (day 1 of 2)

7th Grade Math

» Unit:

Exploring Rational Numbers

Big Idea:Students need to understand that a denominator shows the number of equal parts the whole is divided into.

Fractions and Expressions

4th Grade Math

» Unit:

Number & Operations-Fractions

Big Idea:Students will develop comprehensive understanding and flexible skills by using concrete manipulatives and pictorial representations of a mathematical situation.

Applying Strategies to Word Problems and Fractions

4th Grade Math

» Unit:

Fractions 2: Addition and Subtraction Concepts/ Mini unit

Big Idea:Students apply strategies they have used for whole number word problems, but use fractions this time. They also discover that they can use fractional models to help them solve problems.

Quiz 1 : Assessing addition and subtraction of like denominators

4th Grade Math

» Unit:

Fractions 2: Addition and Subtraction Concepts/ Mini unit

Big Idea:This assessment shows if students know how to add and subtract fractions with like denominators. They also show their skills in applying this understanding to word problems.

Unit Assessment of Addition and Subtraction of Fractions With Like Denominators

4th Grade Math

» Unit:

Fractions 2: Addition and Subtraction Concepts/ Mini unit

Big Idea:This test assesses a variety of problem solving skills involving addition and subtraction of fractions with like denominators, using decomposition, and fractional models to prove their work.

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.