@BoingBoing The teacher is right and here is why! http://www.patheos.com/blogs/friendlyatheist/2015/10/21/why-would-a-math-teacher-punish-a-child-for-saying-5-x-3-15/ …
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@bigfootballet If repeated addition and the array method of multiplication were at all applicable to matrix math, you might be correct.
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@BoingBoing Don't blame the teacher. Blame 'Common Core'. It's ridiculous. Cheers! -
@CraftBeerMonger Bullshit. Common Core in no way prescribes the alternate answers the teacher wrote down.@BoingBoing
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@BoingBoing@Jenthulhu I think the error is because of the format of the answers. They're looking for ability to follow process, not values. -
@pianobar77@BoingBoing Children need to learn flexibility in problem solving. That’s more important than the process you speak of. -
@Jenthulhu@BoingBoing Flexibility is very important, & should be taught & valued, understanding process & following directions is valid too -
@pianobar77@BoingBoing Yes but telling a kid they are wrong when the answer is correct tells them that they shouldn’t bother doing the work -
@Jenthulhu@BoingBoing If it's one on one teaching, I agree. We use homeschooling for our son, and we'd never mark it that way...
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@BoingBoing my guess... this is supposed to be teaching students that not all operation is commutative and to pay fine attention to order -
@Mr_Cain_Thaler@BoingBoing Then DON'T TEACH IT VIA COMMUTATIVE OPERATIONS -
@_ibarskiy_@BoingBoing (laughter) hey I never said it made sense. I was just giving as much goodwill as possible before setting it alight
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@BoingBoing@Jenthulhu children need to learn ___ x 3 = 15 just as much as 5 x ___ = 15. That IS the Commutative Property .... -
@badjin_rank@BoingBoing@Jenthulhu The Commutative Property comes back into play a LOT during algebra, so the sooner, the better
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@BoingBoing@Jenthulhu Bloody freaking hell. Hire a real teacher.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@BoingBoing@Jenthulhu Nah. This doesn't beat the teacher who yelled at me for not knowing what a dividing sign was. I was skipping a grade. - 1 more reply
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@BoingBoing@Jenthulhu Clearly, I had one like that in College though, so this teacher is in good company! -
@badjin_rank@BoingBoing My son had a 3rd grade teacher like this. His spelling test answers were wrong if his letter went below the line. -
@Jenthulhu@BoingBoing I had a grammar instructor that marked off if we got the analysis wrong...wtf?
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