1.OA.A.2

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20 (e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.)

There are 8 videos in this category and 0 videos in 0 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 8 - 13
4424 Views:
Translating Word Statements to Math Using Addition and Subtraction
From YouTube, produced by Candice Jhu
This video indicates it is for pre-algebra, however this would be good for anyone who is reviewing or learning about putting word problems into statement form. They use humor to teach this concept. They use many different examples to reinforce what i... [more]
Found by Barb in 1.OA.A.2
July 31, 2009 at 08:56 AM
  • Favorites

Not Right For WatchKnowLearn
Ages: 3 - 7
7855 Views:
LL Cool J Goes on an Addition Expedition With Elmo
From YouTube, produced by sesame Street.org
In this Sesame Street clip, LL Cool J and Elmo sing the Addition Expedition song. Elmo learns how to "add 'em up."(2:09)
Found by ZG in 1.OA.A.2
July 13, 2009 at 01:35 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 8 - 16
3675 Views:
Subtraction on a Number Line
From YouTube, produced by MuchoMath
This video indicates it is for pre-algebra, however this would be good for anyone who is reviewing subtraction. In this video they show how to subtract using the number line, this includes negative numbers. They do this using many different examples.... [more]
Found by Barb in 1.OA.A.2
July 31, 2009 at 08:44 AM
  • Favorites

Not Right For WatchKnowLearn
Ages: 4 - 7
3267 Views:
Subtraction With Manipulatives
From eduplace.com, produced by Houghton Mifflin
Using counters, students will learn how to write a subtraction problem and determine the answer.  Count the objects in the whole group, cross out to take away and write how many are left.  9 - 4.
Found by tinag1974 in 1.OA.A.2
May 14, 2010 at 01:03 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 5 - 9
2744 Views:
Subtraction 2 - Khan Academy
From YouTube, produced by Salman Khan
In this video, the instructor uses the software to review how to subtract numbers visually. The instructor also uses a number line. The video is suitable for elementary students. (12:32)
January 27, 2010 at 02:48 AM
  • Favorites

Not Right For WatchKnowLearn
Ages: 7 - 12
2731 Views:
Singapore Math: Word Problem With Cookies
From 5min, produced by Sal Khan
Khan Academy Present a word problem with cookies (13:06) Sal Khan uses computer software and different colors for demonstration.
June 7, 2011 at 06:17 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 8 - 13
2687 Views:
Introduction to Word Problem Terms
From YouTube, produced by www.mathwithlarry.com
This is an introduction to basic word problem terms.  Larry discusses key words that are usually associated with a particular mathematical operation. Terms are shown for addition, subtraction, multiplication, and division.  (02:37)
Found by grazianione in 1.OA.A.2
May 5, 2010 at 08:43 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 8 - 11
2795 Views:
Column Substraction and Problem Solving With Subtraction
From discoveryeducation.com, produced by Discovery Education
Using one-, two-, and three-digit numbers, students learn how to subtract numbers without borrowing in columns. They use their knowledge of number families to find the missing numbers in tables using addition and subtraction. Finally, students lear... [more]
Found by grazianione in 1.OA.A.2
June 2, 2010 at 12:17 PM
  • Favorites
History [show]


Loading history...

Comments
Please make your comments on categories positive, and not just negative.

People work hard on educational categories, and we want to encourage them to make more!

  • Profanity (curse words), sexually suggestive remarks, and other such obviously inappropriate comments will be deleted immediately, and are grounds for immediate expulsion. Remember, children use this website.
  • Personal criticism on project forums and in video content is not allowed and will be deleted immediately. Any violations of this rule could result in expulsion from the project so please, no insults or other negative personal remarks.
  • Very harshly-worded criticism of content will also be deleted promptly. Please use your vote to express your harshest feelings. Repeated violations of this rule can result in expulsion. If you must criticize another person's hard work, then be nice about it.
If you want to comment, please sign in
Reason:  

  Cancel

Share