Dave at Math Notations has an interesting poll up, till Feb. 29th. It asks about which multiplication algorithm should be taught in grades 3-5 for multidigit multiplication, and if mastery should be required.
If you're interested in that issue, go check it out and vote:
43x27? Which Algorithm should be taught? A MathNotations survey will end the debate!
(The part about ending the debate is mentioned tongue-in-cheek, I'm sure :)
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