Monthly Archives: July 2009

Key Math Ideas Not Taught In School – Invariants II

I want to add a bunch more examples to my prior post about invariants.  I intend these examples to be relatively straightforward, and flesh out the key idea behind invariants.  To this end, I’m using examples of more elaborate computation … Continue reading

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Key Math Ideas Not Taught In School – Invariants

“Counting” involves a number of different mathematical ideas If you watch really young children count, you may notice that they aren’t all doing the same thing.  For some children, counting “one-two-three” is done in very much the same way as … Continue reading

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Key Math Ideas Not Taught In School

There is a shape, a progression, to the typical school curriculum from Kindergarten through High School, at least in the United States, and this progression hasn’t changed much in the last 50 years or so.  We’ve gotten used to this … Continue reading

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