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Negative Numbers: Intro & Adding/Subtracting

For better or for worse, here’s what I tried: After the last round of thinking, I went digging up lessons on the web. Amidst all the crap that’s out there, I found this page, which seemed to have some valuable ideas on it. Some ruminating and head scratching later, I came up with this: It’s […]

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Negative Numbers: Pre-pre-pre

Next unit up – dealing with negative numbers. For some reason, other math teachers at my level call this “integer rules”, even though the stuff applies to all real numbers. My previously most successful attempt teaching adding and subtracting them used the concept of dinosaurs and people. People are positive (of course) and dinosaurs are […]

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