4.NF.1. Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.
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Ages: 9  15
2860 Views:

Using this manipulative you may:
Find common denominators
Rename fractions with common denominators
Locate equivalent fractions on a number line
Investigate inbetween fractions
There are more instructions to the right of the manipulati...ve.
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May 15, 2010 at 08:26 PM


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Ages: 18  18
3706 Views:

Take a look at a Grade 4 realworld problem from a lesson on Subtracting Fractions From Whole Numbers. This smartboard video gives step by step directions on how to solve a math word problem using a fractions bar. This is a great resource for teacher... professional development or direct instruction. Video has static. (02:58)
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April 21, 2012 at 10:41 PM


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Ages: 10  13
4109 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
