What Fraction of this Shape is Red?
Common Core State Standards
Math 
Math 
3 
Grade 3 
G 
Geometry 
A 
Reason with shapes and their attributes 
2 
Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape. 
Download Common Core State Standards (PDF 1.2 MB) 
Common Core State Standards
Math 
Math 
3 
Grade 3 
NF 
Numbers & OperationsFractions 
A 
Develop understanding of fractions as numbers 
1 
Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b. Grade 3 expectations in this domain are limited to fractions with denominators 2, 3, 4, 6, 8. 
Download Common Core State Standards (PDF 1.2 MB) 
Common Core State Standards
Math 
Math 
3 
3rd Grade 
NF 
Number and Operationsâ€“Fractions 
1 
Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b. 
Download Common Core State Standards (PDF 1.2 MB) 

Teaching PracticeFormative Assessment: Understanding FractionsGrades 34 / Math / FractionsMath.3.NF.A.1 / Math.Practice.MP1 / Math.Practice.MP2
 37
 19

Lesson Idea  Common CoreUnderstanding Fractions through RealWorld TasksGrade 3 / Math / ModelingMath.3.NF.A.1 / Math.3.NF.A.2a / Math.Practice.MP4
 42
 7

Lesson Idea  Common CorePreparation for Fraction MultiplicationGrades 35 / Math / ScaffoldingMath.5.NF.B.4 / Math.5.NF.B.6
 159
 13

Lesson Idea (Common Core)Multiplying Whole Numbers & FractionsGrades 35 / Math / ReasoningMath.4.NF.B.4b / Math.Practice.MP2 / Math.Practice.MP3
 224
 35

Lesson IdeaLaunching a Fractions TaskGrade 4 / Math / ModelingMath.4.NF.B.3a / Math.4.NF.B.3c
 62
 6

Lesson Idea (Common Core)Fractions with BorrowingGrade 4 / Math / FractionsMath.5.NF.A.1
 77
 26

Lesson Idea (Common Core)A Passion for FractionsGrades 35 / Math / ReasoningMath.5.NF.B.4b / Math.Practice.MP2 / Math.Practice.MP3
 512
 59

Planning/CollaborationReflecting on Teaching & Learning About FractionsGrades 35 / Math / Teacher CollaborationMath.5.NF.B.4 / Math.5.NF.B.6
 106
 Lesson Objective
 Students explore part and whole by creating pattern block designs
 Length
 5 min
 Questions to Consider
 How does using pattern blocks of multiple shapes push students thinking about partitioning into equal parts?
 Why does Mr. D have students explain their work geometrically, verbally, and in writing?
 How could Mr. D extend this lesson to develop students thinking around adding and subtracting fractions or decomposition of fractions?
 Support Materials Below
 Transcript
 Common Core Standards
 Math.3.G.A.2, Math.3.NF.A.1, Math.3.NF.1
Teacher & School Info
 School Details
 San Carlos Charter Learning Center San Carlos, CA
 Population
 352 students
 District Spending
 $10,284
Supporting Materials

Transcript for What Fraction of this Shape is Red?

Fractions
Inside Mathematics Website
Embed This Tch Video on Your Site
Just copy the code below and paste it into your html code where you want the video to appear. This latest code supports iPad, iPhone, Flash and more.
Lesson Idea (Common Core) What Fraction of this Shape is Red?
Grades 56 / Math / Fractions