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Learn how to add and subtract integers using integer tiles. For more information and help with integers check out http://www.squidoo.com/integers/.
Duration : 0:5:57
http://www.timbedley.com A cool little trick that will make your life complete. 20-year veteran elementary school teacher Tim Bedley shows how adding and subtracting positive and negative numbers can be a painless experience.
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Duration : 0:9:17
Access full lesson containing this video at: http://www.yourteacher.com/geometry/subtractingintegers.php Students review the addition and subtraction of integers using a number line, where a positive integer represents a move to the right, and a negative integer represents a move to the left. Students learn that minus a negative can be thought of as plus a positive.
Duration : 0:1:24
I explain three different models you can use to show why subtraction of integers works: 1) number line jumps; 2) concept of difference; 3) positive/negative counters. The bottom line is that students need to learn the shortcuts and rules, but these models can help justify the rules.
Duration : 0:7:8