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
4979 Views:

This video shows how to multiply and divide fractions by multiplying the numerators and denominators — even if the fractions have unlike denominators. (01:49)
November 27, 2010 at 08:39 PM


Not Right For WatchKnowLearn
Ages: 10  15
4793 Views:

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...e video students are given problems to solve. Video is good quality and good for all students as a review or initial learning of the topic. (04:16)
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August 4, 2009 at 07:38 PM


Not Right For WatchKnowLearn
Ages: 9  15
4233 Views:

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 ...in red on the left and another in blue on the bottom of a grid. The area of the overlapping region shown in purple is the product (result of multiplying) the fractions.
There are more instructions to the right of the manipulative.
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May 15, 2010 at 08:42 PM


Not Right For WatchKnowLearn
Ages: 8  12
3042 Views:

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...cussion.
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July 21, 2011 at 01:44 PM


Not Right For WatchKnowLearn
Ages: 9  14
1473 Views:

Fractions  Multiplying and Dividing. Numerous numerical and variable expressions are shown. (06:33)
August 10, 2011 at 07:47 AM


Not Right For WatchKnowLearn
Ages: 10  13
4309 Views:

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


Not Right For WatchKnowLearn
Ages: 8  14
3705 Views:

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 ...can practice the rule in the next slide.
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July 21, 2011 at 01:29 PM


Not Right For WatchKnowLearn
Ages: 9  15
1878 Views:

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...mber line, then they show it as a multiplication problem. They do many more examples. Video is good quality and good for all students as review or initial learning of the concept.
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August 1, 2009 at 10:06 AM


Not Right For WatchKnowLearn
Ages: 8  13
4358 Views:

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


Not Right For WatchKnowLearn
Ages: 10  18
6400 Views:

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...uares) Clear teaching and models. Sound and camera work are average. (2:33)
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January 23, 2010 at 02:53 PM
