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.)

 
56 Lesson(s)
   

Exploring Equivalence

5th Grade Math » Unit: Adding and Subtracting Fractions
5th Grade Math » Unit: Adding and Subtracting Fractions
Julie Kelley
Tyngsborough, MA
Environment: Suburban
 
Big Idea:

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

 
Favorites (28)
 
Resources (17)
 
Reflections (2)
citrus paradisi  grapefruit  pink  white bg
   

Pulling Together Fraction Skills

5th Grade Math » Unit: Adding and Subtracting Fractions
5th Grade Math » Unit: Adding and Subtracting Fractions
Julie Kelley
Tyngsborough, MA
Environment: Suburban
 
Big Idea:

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

 
Favorites (11)
 
Resources (18)
 
Reflections (1)
screen shot 2014 02 28 at 4 18 36 pm
   

Adding and Subtracting Fractions Day 1

6th Grade Math » Unit: Fraction Operations
6th Grade Math » Unit: Fraction Operations
Andrea Palmer
Somerville, MA
Environment: Urban
 
Big Idea:

If Ashley ate ½ pizza, Tatyana ate 1/3 of a pizza, and Tiffany ate 5/8 of a pizza, how much pizza did they eat altogether? What’s the smallest number of pizzas they ordered? How much was left? Students work to develop strategies for adding and subtracti

 
Favorites (38)
 
Resources (20)
unit 4 4 image
   

What Fraction of the Section Does Each Person Own?

6th Grade Math » Unit: Fraction Operations
6th Grade Math » Unit: Fraction Operations
Andrea Palmer
Somerville, MA
Environment: Urban
 
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.

 
Favorites (21)
 
Resources (28)
 
Reflections (1)
unit 4 2 image
   

Pretest

6th Grade Math » Unit: Fraction Operations
6th Grade Math » Unit: Fraction Operations
Andrea Palmer
Somerville, MA
Environment: Urban
 
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.

 
Favorites (29)
 
Resources (9)
unit 4 0 image
   

Adding and Subtracting Fractions Day 2

6th Grade Math » Unit: Fraction Operations
6th Grade Math » Unit: Fraction Operations
Andrea Palmer
Somerville, MA
Environment: Urban
 
Big Idea:

How would you add 2 ½ and 2/3? How would you find the difference between 2 ½ and 2/3? Students continue to develop strategies for adding and subtracting fractions.

 
Favorites (21)
 
Resources (21)
unit 4 5 image
   

Adding and Subtracting with Fractions

6th Grade Math » Unit: Number Sense
6th Grade Math » Unit: Number Sense
Michelle Schade
Plainfield, IL
Environment: Suburban
 
Big Idea:

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

 
Favorites (11)
 
Resources (24)
 
Reflections (1)
magnifyingglass
   

Looking for Patterns + Show What You Know

6th Grade Math » Unit: Fraction Operations
6th Grade Math » Unit: Fraction Operations
Andrea Palmer
Somerville, MA
Environment: Urban
 
Big Idea:

How would you solve 3 ¼ - 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.

 
Favorites (7)
 
Resources (12)
unit 4 6 image
   

Unit Test

6th Grade Math » Unit: Fraction Operations
6th Grade Math » Unit: Fraction Operations
Andrea Palmer
Somerville, MA
Environment: Urban
 
Big Idea:

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

 
Favorites (5)
 
Resources (7)
unit 4 18 image
   

Unit Review

6th Grade Math » Unit: Fraction Operations
6th Grade Math » Unit: Fraction Operations
Andrea Palmer
Somerville, MA
Environment: Urban
 
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.

 
Favorites (8)
 
Resources (21)
unit 4 16 image
   

Using Benchmark Fractions to Estimate Sums & Differences

5th Grade Math » Unit: Adding and Subtracting Fractions
5th Grade Math » Unit: Adding and Subtracting Fractions
Julie Kelley
Tyngsborough, MA
Environment: Suburban
 
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.

 
Favorites (5)
 
Resources (16)
 
Reflections (1)
screen shot 2014 02 27 at 5 47 08 pm
   

Adding & Subtracting Fractions with Unlike Denominators (Centers)

5th Grade Math » Unit: Adding and Subtracting Fractions
5th Grade Math » Unit: Adding and Subtracting Fractions
Julie Kelley
Tyngsborough, MA
Environment: Suburban
 
Big Idea:

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

 
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Resources (16)
 
Reflections (1)
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Adding Unlike Fractions

5th Grade Math » Unit: Adding and Subtracting Fractions with Unlike Denominators
5th Grade Math » Unit: Adding and Subtracting Fractions with Unlike Denominators
James Ewing
Seattle, WA
Environment: Urban
 
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.

 
Favorites (13)
 
Resources (30)
 
Reflections (1)
ysl mondrian
   

Simplifying Fractions

5th Grade Math » Unit: Adding and Subtracting Fractions
5th Grade Math » Unit: Adding and Subtracting Fractions
Julie Kelley
Tyngsborough, MA
Environment: Suburban
 
Big Idea:

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

Standards:
 
Favorites (11)
 
Resources (16)
 
Reflections (1)
screen shot 2014 04 17 at 10 09 28 am
   

Equivalent Fractions

5th Grade Math » Unit: Adding and Subtracting Fractions
5th Grade Math » Unit: Adding and Subtracting Fractions
Julie Kelley
Tyngsborough, MA
Environment: Suburban
 
Big Idea:

This lesson helps students develop a deeper understanding of fraction equivalence.

 
Favorites (9)
 
Resources (16)
 
Reflections (1)
fractions on a
Common Core Math
 
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