4.NBT.1. Recognize that in a multidigit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.
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Ages: 8  12
4224 Views:

This video describes and explains some easy steps for comparing and ordering whole numbers. This is a middle school math skill that should be mastered by the sixth grade.
March 16, 2010 at 09:11 PM


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Ages: 7  12
2286 Views:

Divisibility rules can help you easily identify which numbers are divisible by other numbers. That is especially helpful when you have to divide a big number. Memorize these rules, and you will be a dividing dynamo! This video uses cartoon animati...on to provide stepbystep instructions. A short, selfchecking quiz and song are also included with this link.
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June 20, 2011 at 06:58 PM


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Ages: 8  13
2489 Views:

This video indicates it is for prealgebra, but it is good for all levels, beginning, for those who need extra help, or those who need to review. This video is good and contains humor along with the lesson. Reviews what digits are, then goes into wha...t the different place values are. This also contains what the place values are on the other side of the decimal. Then examples are gone through, they also go through the written number (long word form). Video is good quality and good for all students as review or initial learning of the concept.
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July 31, 2009 at 07:47 AM


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Ages: 7  12
2776 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


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Ages: 8  14
4147 Views:

Add and subtract decimal values using base blocks. The problems difficulty is controlled by the user. Set the number of whole number columns up to 100s. Set the decimal places from 0 to 3 places. Other bases are available. Please take a few secon...ds to wait for this virtual manipulate (that uses a Java applet) to fully load. From Utah State University.
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May 9, 2010 at 10:16 AM


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Ages: 5  10
2474 Views:

Chip Abacus
From usu.edu, produced by Utah State University


With this manipulative, you can represent place value and exchanges in base 2, base 5, or base 10. Set the desired base with the up and down arrow buttons below the workspace. Chips in columns then represent units (1), bases (2, 5, or 10), and bases...quared (4, 25, or 100), as indicated by the numbers at the top of each column.
Note that chips can be dragged within a column but not from one column to another.
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May 9, 2010 at 10:40 AM


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Ages: 11  14
2453 Views:

This video introduces whole numbers, place value, expanded form, and writing whole numbers through the billions place. Numerous examples are shown and explained on an interactive board. (A comment not intended for the video is made in the last secon...d of the video). ( 7:35)
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August 20, 2011 at 03:19 PM


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Ages: 7  12
2013 Views:

A number line is a common representation of integers used to teach concepts of positive and negative numbers, zero, placevalue, and arithmetic operations. The Place Value Number Line manipulative is designed to introduce, practice, and test skills i...n representing place value on a number line. There are instructions on the right side of the Java applet.
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May 9, 2010 at 12:58 PM


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Ages: 8  12
1536 Views:

This is an interactive lesson on place value in slide show / video format. The lesson focuses on place value with whole numbers and decimal numbers, and it provides interactive activities and assessment questions for students.
August 4, 2012 at 01:08 AM


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Ages: 7  11
4991 Views:

This video contains a song that helps with students learn about place value. The song is an incredibly catchy tune. (1:02)
November 16, 2009 at 09:50 PM
