4.NF.2. Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.
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Ages: 11  18
7586 Views:

Whole numbers are no better than any others! Practice plotting values on the number line as a passionate activist rises up and demands equity for all numbers, including fractions and decimals. Number Rights addresses number and operations standards a...s well as the process standard, as established by the National Council of Teachers of Mathematics (NCTM). It supports students in: Comparing and ordering fractions, decimals, and percents efficiently and finding their approximate locations on a number line. Building new mathematical knowledge through problemsolving. Solving problems that arise in mathematics and in other contexts. (03:09)
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January 10, 2012 at 11:06 PM


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Ages: 8  14
8909 Views:

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...ck in the blank in the blue circle on that side and type in the difference of the black numbers on that side (the larger black number less the smaller one). So if the black numbers on the top side of the black square were 7 and 12, we would type 5 (= 12 – 7) in the blue circle between the 7 and the 12.
Note: There are more directions on the right side.
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May 9, 2010 at 11:11 AM


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Ages: 9  15
3778 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: 9  15
5764 Views:

In this video they show how to add fractions with unlike denominators. The LCD or lowest common denominator is found and the fractions are converted. The LCD method is shown to students. Then the fractions are added. At the end of the video there are... problems for the students to practice on. Video is good quality and good for all students as a review or initial learning of the topic. (04:05)
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August 4, 2009 at 07:32 PM


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Ages: 18  18
4728 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: 9  15
4391 Views:

Instructor uses a whiteboard to demonstrate how to add and subtract fractions. In the first part of the video they add with like denominators, then they reduce the fraction. Then they add with unlike denominators, first they find the lowest common mu...ltiple, then convert the fraction, then add them. Then they move on to subtraction with like denominators. Then they give you problems to practice on. Video is good quality and good for all students as a review or initial learning of the topic.
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August 4, 2009 at 07:28 PM


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Ages: 10  15
3227 Views:

Adding and Subtracting Fractions / Mixed Numbers: Example 3. In this video, the instructor shows how to add / subtract fractions that have different denominators at the beginning. (04:02)
February 20, 2012 at 02:26 PM


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Ages: 8  12
3045 Views:

How do you add tenths and hundredths? For example, how would you add 7/10 and 9/100? In this video lesson, learn how to add tenths and hundredths by creating equivalent fractions. (4:46)
November 13, 2012 at 05:59 PM


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Ages: 8  13
853 Views:

How do you compare fractions when they have different denominators? For example, how would you compare 4/5 to 4/10? In this lesson, learn to compare fractions with different denominators by using number lines. (4:14)
November 12, 2012 at 10:51 PM


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Ages: 10  13
5267 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
