A Wall Street Journal opinion article drew considerable attention to Common Core (CC) math standards—particularly the sixth-grade standard for fractional division— in early August. In it, math ...
In dividing fractions, we have "a" divided by "b" divided by "c" divided by "d." What must we do with this is keep this first fraction, change the sign to multiplication, and then flip this last ...
NARRATION:Back in the deepest, darkest depths of time, there lived a great mathemagician called Hypatia. Numbers fell under her spell one by one. With them, Hypatia could do anything. Now Hypatia is ...
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