Notes from the big ol’ pile of grading
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I have mixed feelings about students leaving questions blank. On the one hand, it’s a horrible waste, and doesn’t even allow me to find the leanest sliver of an excuse for part-marks. OTOH, it does make things go faster.
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I seem to have a bit of a plague of people who are conflating addition and multiplication. It’s one thing when people do it in the Product or Chain Rules, but I’ve now just found my third test where someone took the derivative of 3y3 and ended up with 6y2y‘… presumably because they searched their brains for 3×3 and came up with 3+3 instead. This bothers me.
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Another frustrating thing is when you give two classes close-to-identical exams and find a massive disparity in the results. And it’s not attributable to extra information, I don’t think, because the later group did much, much worse. Tomorrow morning before I submit the grades, I think I’m going to have to pore over both classes’ exams to make sure that my grading standards were consistent.
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