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- 5.NF.A.1Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)
- 5.NF.A.2Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7 by observing that 3/7 < 1/2.

5.NF.A.1

Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)

Exploring Equivalence

5th Grade Math

Â» Unit:

Adding and Subtracting Fractions

Big Idea:Students have opportunities to connect the different representations, including models, to make sense of equivalent fractions.

Pulling Together Fraction Skills

5th Grade Math

Â» Unit:

Adding and Subtracting Fractions

Big Idea:In this lesson, students start to see how all the different fraction skills they have learned work together.

Adding and Subtracting Fractions Day 1

6th Grade Math

Â» Unit:

Fraction Operations

Big Idea:If Ashley ate Â½ pizza, Tatyana ate 1/3 of a pizza, and Tiffany ate 5/8 of a pizza, how much pizza did they eat altogether? Whatâs the smallest number of pizzas they ordered? How much was left? Students work to develop strategies for adding and subtracti

What Fraction of the Section Does Each Person Own?

6th Grade Math

Â» Unit:

Fraction Operations

Big Idea:What fraction of the section of land does each person own? Students use an area model of farmland to determine how much land each person owns.

Pretest

6th Grade Math

Â» Unit:

Fraction Operations

Big Idea:What do students already know about fractions? What gaps do students have in their understanding? Students take the fractions pretest in order to inform instruction.

Adding and Subtracting Fractions Day 2

6th Grade Math

Â» Unit:

Fraction Operations

Big Idea:How would you add 2 Â½ and 2/3? How would you find the difference between 2 Â½ and 2/3? Students continue to develop strategies for adding and subtracting fractions.

Adding and Subtracting with Fractions

6th Grade Math

Â» Unit:

Number Sense

Big Idea:Using common denominators with fractions will help the students learn to divide fractions.

Looking for Patterns + Show What You Know

6th Grade Math

Â» Unit:

Fraction Operations

Big Idea:How would you solve 3 Â¼ - 1 5/6? What do students understand? What gaps do they have in their understanding? Students continue looking for patterns when they are adding and subtracting fractions and then they take a quiz.

Unit Test

6th Grade Math

Â» Unit:

Fraction Operations

Big Idea:What have students learned during this unit? What gaps do students have in their understanding? Students take the Unit 4 test.

Unit Review

6th Grade Math

Â» Unit:

Fraction Operations

Big Idea:What number sentence represents what is going on in this problem? Why? What kind of model could you create for this problem? Students review the skills they have learned throughout Unit 4.

Using Benchmark Fractions to Estimate Sums & Differences

5th Grade Math

Â» Unit:

Adding and Subtracting Fractions

Big Idea:Students apply their knowledge of benchmark fractions to estimate sums and differences of fractions. They also learn how to show their thinking using number lines.

Adding & Subtracting Fractions with Unlike Denominators (Centers)

5th Grade Math

Â» Unit:

Adding and Subtracting Fractions

Big Idea:During choice time, students have an opportunity to select the activities that will help to develop their mathematical fluency.

Simplifying Fractions

5th Grade Math

Â» Unit:

Adding and Subtracting Fractions

Big Idea:This lesson will help students recognize when fractions are in simplest form.

Adding Unlike Fractions

5th Grade Math

Â» Unit:

Adding and Subtracting Fractions with Unlike Denominators

Big Idea:Recognizing that in order to add fractions we need to have the same denominator. The denominator represents the WHOLE and the numerator represents the BITS/PIECES.

Fraction Cover Up

5th Grade Math

Â» Unit:

Fractions

Big Idea:Students need to concrete models be able to see the exchange of fractions with unlike denominators.

5.NF.A.1

Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)

5.NF.A.2

Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7 by observing that 3/7 < 1/2.