2.OA.C.4

Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.

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Category Videos
Not Right For WatchKnowLearn
Ages: 7 - 12
12204 Views:
Introduction of Multiplication Using Arrays or Models
From YouTube, produced by Pearson Education
This video from an education publishing house features multiplication with arrays or models. This live action video uses coins. The video is an introduction to multiplication and uses simple animation for demonstration. (2:23)
January 23, 2010 at 03:00 PM
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Not Right For WatchKnowLearn
Ages: 6 - 10
3741 Views:
Addition Strategy: Finding 10 and Counting On
From eduplace.com, produced by Houghton Mifflin
Using a ten frame and counters, students will learn to use the manipulatives to make a group of ten first then count on with the remaining counters.  Finding the benchmark number 10 and counting on is an good way addition strategy. User clicks throug... [more]
Found by tinag1974 in 2.OA.C.4
May 20, 2010 at 02:12 PM
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Not Right For WatchKnowLearn
Ages: 8 - 11
5212 Views:
Multiplication Facts Song (simple squares)
From YouTube, produced by Mr. R.
Mr. R.'s multiplication song about 2 x 2, 3 x 3, 4 x 4, etc.     Memorize these simple square numbers to make learning the times tables easier. (03:08)
Found by grazianione in 2.OA.C.4
April 6, 2010 at 08:55 PM
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Not Right For WatchKnowLearn
Ages: 8 - 12
1779 Views:
Basic Multiplication - Khan Academy
From YouTube, produced by Sal Khan
In an easy conversational tone, the instructor uses the computer screen as his 'blackboard' and different colors to emphasis his points. As this is an introduction to multiplication, this video is for elementary students (fourth, fifth, and sixth-gra... [more]
January 23, 2010 at 03:15 PM
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Not Right For WatchKnowLearn
Ages: 7 - 11
5037 Views:
Multiplication as Repeated Addition
From YouTube, produced by enVision Math
This computer-animated video explains multiplication as repeated addition.  The terms factor and product are defined in the video, and the lesson explains how addition and multiplication can be used to represent the same problem. (03:53)
July 21, 2011 at 01:03 PM
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Not Right For WatchKnowLearn
Ages: 3 - 7
2306 Views:
Plus Seven Math Fact Practice
From YouTube, produced by RealKid2020
This animated video uses an addition table to practice the plus 7 math facts. In the second part, the number 7 sings "Magic 7" and shows the number sentences that are made when 7 is added to numerals through 10.  The last two minutes of the video sho... [more]
July 11, 2009 at 10:48 AM
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Not Right For WatchKnowLearn
Ages: 5 - 8
2245 Views:
Math Song - adding 6 + 4 (Six Sick Sticks)
From YouTube, produced by Mr. R.
Another Mr. R. Ways to Make Ten math song- discover the funkier side of things (and the unfortunate result of Mr. R. playing the saxophone) while adding. (02:37)
Found by raknyc in 2.OA.C.4
May 19, 2010 at 07:59 AM
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Not Right For WatchKnowLearn
Ages: 6 - 18
3283 Views:
Multiplication Strategies
From teachertube.com
What strategies can I use to solve a multiplication problem? This video shows the different strategies on how do to so by: repeated addition, make groups, multiplication table, skip counting, and arrays!
Found by shogan in 2.OA.C.4
November 28, 2010 at 04:32 PM
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