Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a × q ÷ b. For example, use a visual fraction model to show (2/3) × 4 = 8/3, and create a story context for this equation. Do the same with (2/3) × (4/5) = 8/15. (In general, (a/b) × (c/d) = ac/bd.)

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Category Videos
Not Right For WatchKnowLearn
Ages: 9 - 14
How to Multiply and Divide Fractions
From YouTube, produced by For Dummies
This video shows how to multiply and divide fractions by multiplying the numerators and denominators — even if the fractions have unlike denominators. (01:49)
Found by hdaniel in 5.NF.B.4a
November 27, 2010 at 08:39 PM
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Not Right For WatchKnowLearn
Ages: 10 - 15
Multiplying Fractions and Mixed Numbers
From YouTube, produced by LearnBetterNow.com
Students learn how to multiply mixed numbers and multiple sets of improper fractions. The first step for students is to make improper fractions, then to cross cancel, then multiplication is done. Another example is done for students. At the end of th... [more]
Found by Barb in 5.NF.B.4a
August 4, 2009 at 07:38 PM
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Not Right For WatchKnowLearn
Ages: 9 - 15
Fractions - Rectangle Multiplication - A Virtual Manipulative
From usu.edu, produced by Utah State University
Visualize and practice multiplying fractions using an area representation. Use this virtual manipulate to graphically demonstrate, explore, and practice multiplying fractions. The grid shows two fractions multiplied together by showing one fraction ... [more]
May 15, 2010 at 08:42 PM
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Not Right For WatchKnowLearn
Ages: 8 - 12
Grade 4 Fractions
From SlideShare, produced by Miss I
This sildeshow could be for grades 4 and 5. There are visual representations of pizza pies in this slideshow that may help the visual learner. There are eleven slides, but no sound. The teacher or student may pause the slideshow for clarification/dis... [more]
July 21, 2011 at 01:44 PM
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Not Right For WatchKnowLearn
Ages: 9 - 14
Fractions - Multiplying and Dividing
From YouTube, produced by Patrick
Fractions - Multiplying and Dividing. Numerous numerical and variable expressions are shown. (06:33)
August 10, 2011 at 07:47 AM
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Not Right For WatchKnowLearn
Ages: 10 - 13
Equivalent Fractions - Khan Academy
From YouTube, produced by Salman Khan
This video is an introduction to the concept of equivalent fractions with examples. The instructor uses software to illustrate his points. (05:49)
July 11, 2009 at 08:45 AM
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Not Right For WatchKnowLearn
Ages: 8 - 14
The Four Rules of Fractions
From SlideShare, produced by Steve Bishop
The four rules - adding, subtracting, division and multiplication - with fractions. This is an excellent slideshow. The teacher or the student can control how fast the presentation should be. The presenter gives the rule in one slide and the student ... [more]
July 21, 2011 at 01:29 PM
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Not Right For WatchKnowLearn
Ages: 9 - 15
Multiplying Fractions Part 1a
From YouTube, produced by Lawrence Perez
In this video they show how to multiply fractions, in this part they are also using a number line, so there is a visual representation. They start with a fraction and multiply by a whole number, they show the repeated addition, then show it on the nu... [more]
Found by Barb in 5.NF.B.4a
August 1, 2009 at 10:06 AM
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Not Right For WatchKnowLearn
Ages: 8 - 13
Fractions - Add, Subtract, Multiply and Divide
From SlideShare, produced by SandraTeer
This is a slideshow in which the instructor shows adding, subtracting, multiplying, and dividing fractions step by step. There is no sound. (24 slides)
July 21, 2011 at 01:40 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
Array Model for Multiplication
From YouTube
The instructor uses paper, pen, and colored markers to show how to invert and multiply as one algorithm for multiplying fractions. For upper elementary and middle school students. Demonstrates how to solve multiplication of fractions using arrays (sq... [more]
January 23, 2010 at 02:53 PM
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