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I know this is just my experience but I can confirm the automated math scoring system I was using in a large US university in 2012 had bugs where many times I w
by dvdbloc 7y ago
I know this is just my experience but I can confirm the automated math scoring system I was using in a large US university in 2012 had bugs where many times I would enter a complex solution with fractions and it would tell me I was wrong and the correct response was some other form of the same equivalent fraction... Talk about frustrating after pouring over a question for 10 minutes.
- DoctorOetker 7y agowhat was the allowed form of the fraction? a ratio of literal integers, or also including irrationals? variables? did the scoring system need to know formulas? as in (2/3)v =?= (2/3) omega*r ? if only the last one is not required of the scoring system, then it's been available for ages, and its just a really poor implementation. That's not programming but plumbing data-pipes.
- black6 7y agoI remember to this day when I went round and round with a calculus teacher in high school who told me "sin(x) + 2" was incorrect. Then answer she wanted was "2 + sin(x)". I argued that addition was commutative, "2 + 3 = 3 + 2" and so forth. She wouldn't budge. She also said it was impossible to calculate the exact area under a curve, because you can't draw an infinite number of boxes under the curve. Having an ignorant teacher is almost as bad as a flawed, black-box algorithm.
- crankylinuxuser 7y agoMy gods, that is stupid. Math is only not commutative in very rare areas. A specific area is concatenation of 2 strings, or 2 rotations of a rubiks cube. > said it was impossible to calculate the exact area under a curve And this is why a lot of people are against unions and similar protections for teachers. How do you get rid of someone who blatantly lies and informs falsely to students? How do you get rid of horrible teachers?