Awesome!
“@bobloch: When Subtraction Problems Aren't Really About Subtraction, the High School Perspective http://t.co/sZWd08Qs0I #mathchat”
— Captain A.D.D. (@approx_normal) March 23, 2014
via Twitter http://ift.tt/1dnFTEX
March 23, 2014 at 09:52AM
Awesome!
“@bobloch: When Subtraction Problems Aren't Really About Subtraction, the High School Perspective http://t.co/sZWd08Qs0I #mathchat”
— Captain A.D.D. (@approx_normal) March 23, 2014
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