## Common Core State Standards for Mathematics

Grade(s) 3 resources related to the following standard:
Number and Operations—Fractions
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.

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This page contains 20 problems in geometry from the Port Angeles School District in Washington state. Links to state GLEs and revised standards are provided. Topics covered include shape in plane and solid geometry, bilateral symmetry, and logic.
Problem Set
This fraction supplement includes three activities in which students name and represent commonly used fractions, such as 1/2, 1/3, and 1/4. Through these activities students explore unit fractions and non-unit fractions of a whole as well as fractions of a set. Each activity includes instructions, guide questions, and extension suggestions.
Activity, Lesson Plans
In this informative webpage, teachers are given ideas on how to test what their students know about fractions on a number line, as well as some easy ideas to get students comfortable with placing fractions on a number line. There is a 2:50 minute video explaining how to place fractions on a number line. Two printable practice sheets are available in PDF format.
Instructional Strategy, Lecture/Presentation, Video
In this application students determine the fractional value that is represented on the number line. Students use the number line to determine both the numerator and the denominator of the fraction. Beneath the application is a detailed explanation of the parts of a fraction; students may also receive an explanation by clicking on the "Explain" button. This resource is part of the Visual Fractions website which is cataloged separately.
Activity, Interactive Media
Teachers can use this interactive tool to help students build a conceptual understanding of fractions by linking visual models to numeric representations. Students learn about equal parts of a whole (denominators) and shaded parts (numerators). This page includes a video demonstration of the tool and sample lessons from the Conceptua curriculum. Free registration is required to use the tool. A paid subscription is necessary to access full curriculum and allow full student use.
Activity, Demonstration, Interactive Media, Video
Grade Level: 2, 3, 4, 5
Resource is part of a PD collection
This Web unit is designed to introduce young children (K-2) to beginning concepts in fractions: equal parts, divide and shade, parts to whole, and writing fractions. Each lesson includes an interactive, manipulative-based project, technology, paper/pencil practice, and literature connections. Helpful links and teacher support extension ideas are also provided, including alignment to NCTM Standards.
Activity, Instructor Guide/Manual, Lesson Plans
Grade Level: Pre-K, K, 1, 2, 3
In this lesson students learn the meaning of fractions as parts of a whole and parts of a set. They learn key vocabulary and how to compare and order fractions. The lesson links to an interactive game, Fraction Fun (catalogued separately), which gives practice in naming fractions, and to downloadable follow-up exercises (Word and pdf).
Activity, Interactive Media, Lesson Plans
In this lesson plan from Illuminations, students use relationship rods to explore fraction relationships. Relationship rods range in length from one to ten centimeters, and each rod is a different color. An activity sheet with solutions, questions for students, assessment options, and suggested extension activities are included. The lesson plan is part of a five lesson plan unit, Fun with Fractions, which is cataloged separately.
Activity, Lesson Plans
Grade Level: 3, 4, 5, 6+
Resource is part of a PD collection