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Multiplying Negative Numbers
There are 8 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 13 - 18
1150 Views:
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This video is from The Math Party National Standards Program and features a catchy tune to help students remember the rules of multiplying positive and negative numbers.
March 21, 2010 at 02:50 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
983 Views:
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The instructor show how to multiply negative integers with specific examples using computer software. The sound of the instructor's voice is a little low, but understandable. However, the voice may not be heard in a large classroom.
March 21, 2010 at 02:36 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
896 Views:
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This video illustrates how to multiply integers, as used in basic high school Math courses. Good sound quality. Instructor uses camera that is focused on his paper for demonstration.
March 21, 2010 at 02:30 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
882 Views:
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The instructor explains in clear terms how to multiply negative numbers. Stationary camera in front of a white board. Good sound quality.
March 21, 2010 at 02:42 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
1139 Views:
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Good video; shows an easy way of remembering same signs vs. different signs.
July 8, 2009 at 06:48 AM
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Not Right For WatchKnowLearn
Ages: 10 - 16
1008 Views:
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This video starts with a note that the student should watch the video on absolute numbers. The meaning of multiplication is reviewed, it is repeated addtion. Using a number line they explain how positive and negative numbers impact the equation. 3 x ...1 = 1 + 1 + 1 = 3, -1 x 3 = -1 + -1 + -3. They show it this way to show that a positive times a positive is always a positive and a negative times a positive will always be negative. By the commutative property then a positive times a negative is negative. Then some examples are done. They also show another rule: multiplying a number by -1 is the same as taking the opposite of the number. They then go through a few examples. Then they go through a negative number times a negative number. The rule they discover is: negative times a negative number equals a positive number. Some examples are done. Video is good quality and good for all students as review or initial learning of the concept. There are English captions at the bottom.
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July 31, 2009 at 04:03 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
937 Views:
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This instructor in this video, Sal Khan, discusses how to multiply and divide negative numbers. Mr. Khan uses computer software (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education.
February 28, 2010 at 12:05 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
918 Views:
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This video offers an explanation of multiplying with negative numbers. This video is suitable for viewing on mobile devices and can be followed with or without audio accompaniment.
March 24, 2010 at 08:56 PM
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