Fractions of Groups

Part of

• Intro to Fractions
• Fractions

Standards alignment

Common Core State Standards

• 3.NF.A.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.

Alabama

• MA19.3.13 — Demonstrate that a unit fraction represents one part of an area model or length model of a whole that has been equally partitioned; explain that a numerator greater than one indicates the number of unit pieces represented by the fraction.

Alaska

• 3.NF.1 — Understand a fraction 1/b (e.g., 1/4) as the quantity formed by 1 part when a whole is partitioned into b (e.g., 4) equal parts; understand a fraction a/b (e.g., 2/4) as the quantity formed by a (e.g., 2) parts of size 1/b. (e.g., 1/4)

Arizona

• 3.NF.A.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.
• 3.NF.A.2.c — Understand a fraction 1/b as a special type of fraction can be referred to as a unit fraction (e.g. 1/2, 1/4).

Arkansas

• 3.NPV.6 — Identify fractions as parts of a whole and parts of a collection or set. • Fractions include: denominators 2, 3, 4, 6, and 8

California

• 3.NF.A.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.

Colorado

• 3.NF.A.1 — Describe 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.

Connecticut

• 3.NF.A.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.

Delaware

• 3.NF.A.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.

Florida

• MA.3.FR.1.1 — Represent and interpret unit fractions in the form 1/n as the quantity formed by one part when a whole is partitioned into n equal parts.
• MA.3.FR.1.2 — Represent and interpret fractions, including fractions greater than one, in the form of <math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="10px"><mfrac><mi>m</mi><mi>n</mi></mfrac></mstyle></math> as the result of adding the unit fraction <math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="10px"><mfrac><mn>1</mn><mi>n</mi></mfrac></mstyle></math> to itself m times.
• MA.3.FR.1.3 — Read and write fractions, including fractions greater than one, using standard form, numeral-word form and word form.

Georgia

• 3.NR.4 — Represent fractions with denominators of 2, 3, 4, 6 and 8 in multiple ways within a framework using visual models.

Hawaii

• 3.NF.A.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.

Idaho

• 3.NF.A.1 — Understand a fraction 1/b as the quantity formed by one part when a whole (a single unit) is partitioned into 𝑏 equal parts; understand a/b as the quantity formed by a parts of size 1/b

Illinois

• 3.NF.A.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.

Indiana

• 3.NS.2 — Model unit fractions as the quantity formed by 1 part when a whole is partitioned into equal parts; model non-unit fractions as the quantity formed by iterations of unit fractions. [In grade 3, limit denominators of fractions to 2, 3, 4, 6, 8.] (E)
• 5.NS.2 — Explain different interpretations of fractions, including as parts of a whole, parts of a set, and division of whole numbers by whole numbers.

Iowa

• 3.NF.A.1 — Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into 𝑏𝑏 equal parts; understand a fraction a/b as the quantity formed by a part of size 1/b .

Kansas

• 3.NF.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.

Kentucky

• KY.3.NF.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.

Louisiana

• 3.NF.A.1 — Understand a fraction 1/b, with denominators 2, 3, 4, 6, and 8, 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.

Maine

• 3.NF.A.1 — Understand a unit 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.

Maryland

• 3.NF.A.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).

Massachusetts

• 3.NF.A.1 — Understand a fraction 1/b as the quantity formed by 1 part when a whole (a single unit) is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.

Michigan

• 3.NF.A.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.

Minnesota

• 3.1.3.1 — Read and write fractions with words and symbols. Recognize that fractions can be used to represent parts of a whole, parts of a set, points on a number line, or distances on a number line. For example: Parts of a shape (3/4 of a pie), parts of a set (3 out of 4 people), and measurements (3/4 of an inch).
• 4.1.2.1 — Represent equivalent fractions using fraction models such as parts of a set, fraction circles, fraction strips, number lines and other manipulatives. Use the models to determine equivalent fractions.

Mississippi

• 3.NF.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.

Missouri

• 3.NF.A.2 — Understand that when a whole is partitioned equally, a fraction can be used to represent a portion of the whole.
• 3.NF.A.2.a — Describe the numerator as representing the number of pieces being considered.
• 3.NF.A.2.b — Describe the denominator as the number of pieces that make the whole.
• 3.NF.A.1 — Understand a unit fraction as the quantity formed by one part when a whole is partitioned into equal parts.

Montana

• 3.NF.A.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.

Nebraska

• 3.N.2.b — Find parts of a whole using visual fraction models.
• 3.N.2 — Fractions: Students will develop understanding of fractions as numbers.

Nevada

• 3.NF.A.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.

New Hampshire

• 3.NF.A.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.

New Jersey

• 3.NF.A.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.

New Mexico

• 3.NF.A.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.
• MP8 — Look for and express regularity in repeated reasoning.

New York

• NY-3.NF.1 — Understand a unit fraction, 1/b, is 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.

North Carolina

• NC.3.NF.1 — Interpret unit fractions with denominators of 2, 3, 4, 6, and 8 as quantities formed when a whole is partitioned into equal parts; • Explain that a unit fraction is one of those parts. • Represent and identify unit fractions using area and length models.
• NC.3.NF.2 — Interpret fractions with denominators of 2, 3, 4, 6, and 8 using area and length models. • Using an area model, explain that the numerator of a fraction represents the number of equal parts of the unit fraction. • Using a number line, explain that the numerator of a fraction represents the number of lengths of the unit fraction from 0.

North Dakota

• 3.NO.NF.1 — Partition two-dimensional figures into equal areas and express the area of each part as a unit fraction of the whole. Describe using the language of sixths, eighths, a sixth of, and an eighth of.

Ohio

• 3.NF.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.
• MP.8 — Look for and express regularity in repeated reasoning.

Oklahoma

• 3.N.3.2 — Model fractions using length, set, and area for halves, thirds, fourths, sixths, and eighths.
• 2.N.3.1 — Identify the parts of a set and area that represent fractions for halves, thirds, and fourths.
• 3.N.3 — Use and justify fractional representations in real-world and mathematical problems.

Oregon

• 3.NF.A.1 — Understand the concept of a unit fraction and explain how multiple copies of a unit fraction form a non-unit fraction.

Pennsylvania

• CC.2.1.3.C.1 — Explore and develop an understanding of fractions as numbers.

Rhode Island

• 3.NF.A.1 — Understand a fraction 1/b as the quantity formed by 1 part when a whole (a single unit) is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.

South Dakota

• 3.NF.A.1 — Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts (example: 1 part out of 4 equal parts is the same as 1/4); understand a fraction a/b as the quantity formed by a parts of size 1/b. (example:3/4 is the same as 3 one-fourths (1/4, 1/4, 1/4).

Tennessee

• 3.NF.A.1 — Understand a unit fraction, 1/b, as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a non-unit fraction, n/b, as the quantity formed by n parts of size 1/b. For example, 3/4 represents a quantity formed by 3 parts of size 1/4.

Texas

• 3.3A — represent fractions greater than zero and less than or equal to one with denominators of 2, 3, 4, 6, and 8 using concrete objects and pictorial models, including strip diagrams and number lines;
• 3.3C — explain that the unit fraction 1/b represents the quantity formed by one part of a whole that has been partitioned into b equal parts where b is a non-zero whole number;

Utah

• 3.NF.1.a — Understand a fraction 1/b as the quantity formed by one part when a whole is partitioned into b equal parts.
• 3.NF.1.b — Understand a fraction a/b as the quantity formed by a parts of size 1/b. For example: 1/4 + 1/4 + 1/4 = 3/4.
• 3.NF.1 — Understand that a unit fraction has a numerator of one and a non-zero denominator.

Vermont

• 3.NF.A.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.
• MP8 — Look for and express regularity in repeated reasoning.

Virginia

• 3.NS.3a — Represent, name, and write a given fraction (proper or improper) or mixed number with denominators of 2, 3, 4, 5, 6, 8, and 10 using:
• 3.NS.3 — The student will use mathematical reasoning and justification to represent and compare fractions (proper and improper) and mixed numbers with denominators of 2, 3, 4, 5, 6, 8, and 10), including those in context. Students will demonstrate the following Knowledge and Skills:

Washington

• 3.NF.A.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.

Washington, D.C.

• 3.NF.A.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.

West Virginia

• M.3.15 — 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/bas the quantity formed by a parts of size 1/b. Instructional Note: Fractions in this standard are limited to denominators of 2, 3, 4, 6, and 8.

Wisconsin

• M.3.NF.A.1 — Understand a unit fraction as the quantity formed when a whole is partitioned into equal parts and explain that a unit fraction is one of those parts (e.g., 1/4). Understand fractions are composed of unit fractions.

Wyoming

• 3.NF.F — Develop understanding of fractions as numbers. (Limited to denominators 2, 3, 4, 6, and 8) * use horizontal fractions.
• 3.NF.F.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.