Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

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Category Videos
Not Right For WatchKnowLearn
Ages: 8 - 14
Diffy - Virtual Manipulative
From usu.edu, produced by Utah State University
When Diffy opens, there are four black numbers placed at the corners of a black square. Your first goal is to fill in the four blanks in the blue circles in the middle of each side of the black square. Start with any side of the black square and cli... [more]
May 9, 2010 at 11:11 AM
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Not Right For WatchKnowLearn
Ages: 18 - 18
Singapore Math: A Spool of Ribbon-Fractions Bar Model
From YouTube, produced by mathinfocus-singaporemathblog.com
Take a look at a Grade 4 real-world 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... [more]
Found by porter1526 in 4.NF.B.3d
April 21, 2012 at 10:41 PM
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Not Right For WatchKnowLearn
Ages: 10 - 15
Adding and Subtracting Fractions / Mixed Numbers: Example 4
From YouTube, produced by Patrick
Adding and Subtracting Fractions / Mixed Numbers: Example 4. Here we look at another subtraction problem involving fractions. (01:29)
February 20, 2012 at 02:24 PM
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Not Right For WatchKnowLearn
Ages: 7 - 13
How to Add Simple Fractions
From YouTube, produced by Shadows of Darkness
A simple learning tool to learn how to add fractions. This animated feature shows the viewer how to add simple fractions, those with like AND unlike denominators. It also teaches the vocabulary words numerator and denominator. Run time 03:52.
Found by lfreeman in 4.NF.B.3d
November 28, 2010 at 02:29 PM
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