3.NF.A.2

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- 3.NF.A.1Understand 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.
- 3.NF.A.2Understand a fraction as a number on the number line; represent fractions on a number line diagram.
- 3.NF.A.3Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

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3.NF.A.2a

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- 3.NF.A.2aRepresent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Recognize that each part has size 1/b and that the endpoint of the part based at 0 locates the number 1/b on the number line.
- 3.NF.A.2bRepresent a fraction a/b on a number line diagram by marking off a lengths 1/b from 0. Recognize that the resulting interval has size a/b and that its endpoint locates the number a/b on the number line.

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## 3.NF.A.2a

## Represent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Recognize that each part has size 1/b and that the endpoint of the part based at 0 locates the number 1/b on the number line.

14 Lesson(s)

### Number Line Fractions

3rd Grade Math »
Unit: Fractions: More Than A Whole

3rd Grade Math »
Unit: Fractions: More Than A Whole

### Jump the Line

3rd Grade Math »
Unit: Fractions: More Than A Whole

3rd Grade Math »
Unit: Fractions: More Than A Whole

Big Idea:

#### Whole objects and sets of objects are not the only things that can be divided into fractional parts. Knowing how number lines can be partitioned is important to the application of fractions to everyday tasks.

Favorites
(22)

Resources
(8)

Reflections
(1)

### I Want Some Candy! A Journaling Assessment

3rd Grade Math »
Unit: Unit Fractions

3rd Grade Math »
Unit: Unit Fractions

### Pass Whole, Collect $200

3rd Grade Math »
Unit: Fractions: More Than A Whole

3rd Grade Math »
Unit: Fractions: More Than A Whole

### Is 1/3 Always Equal to 1/3?: A Journal Exercise

3rd Grade Math »
Unit: Comparing Fractions

3rd Grade Math »
Unit: Comparing Fractions

### Fractions on a Number Line - Beyond One Whole

3rd Grade Math »
Unit: Fractions

3rd Grade Math »
Unit: Fractions

### Musical Fractions- An Introduction

3rd Grade Math »
Unit: Musical Fractions

3rd Grade Math »
Unit: Musical Fractions

### Matching Models (Number Lines and Diagrams)

3rd Grade Math »
Unit: Fractions

3rd Grade Math »
Unit: Fractions

### Show What You Know: A 2 Day Assessment

3rd Grade Math »
Unit: Comparing Fractions

3rd Grade Math »
Unit: Comparing Fractions

Big Idea:

#### After a large unit like fractions, it is important to assess the students ability to apply and communicate their knowledge. These two very different activities will help you assess and record your student's learning according to the Common Core Standards.

Standards:

Favorites
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Resources
(11)

Reflections
(1)

### Basic Fractions on a Number Line (Divisible by Two)

3rd Grade Math »
Unit: Fractions

3rd Grade Math »
Unit: Fractions

### Improper Fractions and Mixed Numbers

4th Grade Math »
Unit: Number & Operations-Fractions

4th Grade Math »
Unit: Number & Operations-Fractions

Common Core Math

### Kindergarten

### First Grade

### Second Grade

### Third Grade

### Fourth Grade

### Fifth Grade

### Sixth Grade

### Seventh Grade

### HS Number & Quantity

### HS Algebra

### HS Functions

### HS Geometry

### Kindergarten

### First Grade

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### Fifth Grade

### Sixth Grade

### Seventh Grade

### Eighth Grade

### Ninth and Tenth Grade

### Kindergarten

### First grade

### Second grade

### Third Grade

### Fourth grade

### Fifth grade

### Middle School

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

HS Number & Quantity

HS Algebra

HS Functions

HS Geometry

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

Eighth Grade

Ninth and Tenth Grade

Kindergarten

First grade

Second grade

Third Grade

Fourth grade

Fifth grade

Middle School