The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
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Not Right For WatchKnowLearn
Ages: 4  7
8130 Views:

Using a tens and ones workmat, students learn how to take a large group of ones and put them into groups of ten regrouping. Take the group of 10 ones and put it in the tens column. User clicks through the slides.
May 14, 2010 at 01:40 PM


Not Right For WatchKnowLearn
Ages: 7  10
12364 Views:

In this video, the instructor uses a graphics program to review how to subtract numbers and introduces how to regroup or borrow. The instructor also uses a number line. The video is suitable for elementary students. (18:26)
January 27, 2010 at 02:51 AM


Not Right For WatchKnowLearn
Ages: 7  12
5935 Views:

This video teaches students to add twodigit numbers using mental math and left to right addition ( two column addition). The problems appear on a white screen and are explained stepbystep by a math tutor. By the end of the video, students learn t...o add four twodigit numbers. (09:39)
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July 20, 2011 at 10:39 AM


Not Right For WatchKnowLearn
Ages: 7  11
4335 Views:

Using manipulatives, students will learn to regroup, trade or change, a group of 10 one's for 1 ten. User clicks through the slides.
May 20, 2010 at 03:27 PM


Not Right For WatchKnowLearn
Ages: 9  12
10156 Views:

Math With Larry presents an interactive white board lesson on rounding. Larry quickly reviews place value and then shares the rounding rules. Teacher encourages students to highlight or underline the digit the student is rounding to decrease confusi...on. The teacher tells students why rounding is an important skills and how to use it. (03:44)
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January 25, 2010 at 03:16 PM


Not Right For WatchKnowLearn
Ages: 7  10
5560 Views:

In this video, the instructor uses software to review how to add numbers. He starts with singledigit numbers, then moves into twodigit numbers, and reviews how to use a number line. (12:26)
January 27, 2010 at 02:36 AM


Not Right For WatchKnowLearn
Ages: 7  12
6122 Views:

Students will learn to use a number line to help round large numbers. If a number is halfway between two 10's, round to the next 10. If a number is halfway between two 100's, round to the next hundred. User clicks through the slides.
May 20, 2010 at 03:43 PM


Not Right For WatchKnowLearn
Ages: 6  12
5407 Views:

Base Blocks Addition – Use base ten blocks to model grouping in addition. This manipulative uses a Java applet.
May 9, 2010 at 10:13 AM


Not Right For WatchKnowLearn
Ages: 6  11
4369 Views:

Students will learn to use their knowledge of place value and addition facts to add numbers. First look for 10s and doubles. Add the ones first then add the tens. User clicks through the slides.
May 20, 2010 at 02:43 PM


Not Right For WatchKnowLearn
Ages: 7  10
3247 Views:

In this video, students review place value up to the hundreds place. Then, they are given a series of numbers and must identify the number of digits and how many are in each column of hundreds, tens, and ones. They also practice writing numbers from ...place value clues. (6:12)
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November 28, 2010 at 06:20 PM
