Introduc

Introduction to Positive and Negative Integers

 Introduction to Integers:   how can you add something... and end up with less?   This little story introduces the idea of the "opposite" nature of integers. http://www.resourceroom.net/math/722IntroIntegers/722IntroIntegers.html

Adding integers of the same sign -- this is via Camtasia, with quizzes interspersed in the video.  (You can push the little "play" thing along and get past the quizzes, though.)

Absolute Value -- how can you be absolutely positive about absolute value?   A visual-kinesthetic approach can help.  Create a chalk (outdoor) or painters' tape (indoor)number ladder in which students can physically see how moving the same distance in opposite directions creates opposite numbers.  From there, absolute value is absolutely easy!!

Adding integers with different signs -- lesson with practice and review of adding same-signed integers

More Powerpoint Shows:  

Subtracting Integers - adding the *opposite* :)

Subtracting positive integers from negative integers --

and, finally...

Subtracting Negative Integers -- taking away a bad thing is giving you a good thing!

Distributive property review -- flash movie

Author's note:   I used the "chips" approach but will be adding parallel lessons using the number line.