Instructional Component Type(s): Tutorial, Video/Audio/Animation,

Related Standards: MAFS.5.NF.2.4

Direct Link: http://whyu.net/media/download/Pre-Algebra 12 - Arithmetic Operations with Fractions - small.mp4 *

Examples of Opportunities for In-Depth Focus When students meet this standard, they fully extend multiplication to fractions, making division of fractions in grade 6 (6.NS.1) a near target.

In this tutorial, the four operations are applied to fractions with the visualization of the number line. This tutorial starts by adding fractions with the same denominators and explains the logic behind multiplication of fractions. This tutorial also highlights the application and extension of previous understandings of mulitplication to multiply a fraction or whole number by a fraction.

a. Interpret the product (a/b) x q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a x qb. In general, (a/b) x (c/d) = ac/bd.

Subject(s): Mathematics

Grade Level(s): 5

Suggested Technology: Computer for Presenter, Computers for Students, Internet Connection, Interactive Whiteboard, Speakers/Headphones

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Aligned Standards

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