Monday, November 1, 2010

Multiplying Integers, Part 1

Today, we developed an algorithm for multiplying integers. Students recognized the following rules:

•a positive times a positive is a positive
•a negative times a negative is a positive
•a positive times a negative is a negative

We summarized the rule like this: If the signs are the same, the product is positive. If the signs are opposite (or different), then the product is negative,

Tonight's Homework: Page 45 in Accentuate the Negative

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