## 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.
3. Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
b. Recognize and generate simple equivalent fractions, e.g., 1/2 = 2/4, 4/6 = 2/3). Explain why the fractions are equivalent, e.g., by using a visual fraction model.

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This interactive applet helps students develop fraction sense by comparing and ordering fractions and identifying equivalent fractions. In each of 8 progressive rounds students arrange 10 socks, each with a fraction displayed, onto a 0 - 1 number line by estimating their relative locations. The applet adjusts the position of each sock to be accurate; however, if the new sock has to pass a previously placed sock, the level ends and the player must start over.
Activity, Interactive Media
Grade Level: 3, 4, 5, 6+
In this lesson plan, students investigate ways to share different sized items between two people. Students are asked to find equivalent fractions on a number line and to order those fractions by size. Included are a video clip called Equal Amounts of Gold, two worksheets, and two assessments as well as an answer key.
Activity, Lesson Plans, Video
Grade Level: 3, 4, 5, 6+
This webpage contains a 6-minute video that shows Cara Crist working with her third grade class to create fraction strips (wholes, halves, fourths, and eighths). The students use these fraction strips to play a game of "Cover Up" where they must cover the one whole using the other fraction pieces. Crist discusses how this can be extended to "Uncover" and "Trade Up" versions of the game. This webpage also contains a PDF link that details how to play "Cover Up" and "Uncover".
Activity, Game, Video
This is a sample PARCC assessment task based on CCSS grade 3 fraction standards. In this interactive five-part task students reason about fractions used to represent part of a whole or a location on a number line. Included are the alignments to the CCSS, a scoring rubric, and background on the task itself.
Assessment, Problem Set, Reference Materials
This lesson gives students practice in applying fraction concepts, interpreting positional words, and paying attention to details. In order to decode a message, students construct new words by using fractional parts of other words as specified in the clues. A correct analysis of the clues leads to a candy bar reward. The activity could be adapted to accommodate individual classes and situations.
Activity, Lesson Plans
In this interactive game similar to Concentration(TM) students match fractions (1/2, 1/3, 3/4, and 5/9) to images that represent those fractions. This game can be played in pairs with the printed out cards or as a whole class on the interactive white board (IWB). This resource includes teacher notes with suggestions for introducing the game, discussion questions, support suggestions, a set of cards to be printed (PDF), a blank set of cards to make your own (PDF), and a full screen version of the game.
Activity, Game
This document provides descriptions and examples of what each Mathematics Common Core standard means a Grade Three student will know, understand and be able to do. This "unpacking" of the standards provides instructional guidelines and was developed to assist North Carolina educators teach the Mathematics Common Core (Standard Course of Study).
Reference Materials