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- May 19, 2015
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I'm currently taking this class called elementary analytical chemistry. Basically, we got out first exam back and I was disappointed in my score (got a C), but then I noticed that I missed 6 easy questions that I calculated correctly, BUT the significant figures didn't match up with the answer choices, therefore I put "none of the above" since that's one of the answer choices. The professor then stated that significant figures didn't matter for this exam AFTER we got the exam back because we never went over it even though the chapters in the book that were stated on the powerpoint for exam 1 had the sig fig chapter in it, but on his powerpoints ALL of the calculations were rounded to the correct sig figs. On all of his question, the answer choice "none of the above" is a choice so how are we suppose to know if we're using sig figs or not, he never told us and he left like 10mins after the exams were passed out. The TAs didn't know anything when students asked either.
Afterwards, when we were going over the exam he told the entire class I'll give you points if you circled "none of the above" as an answer if the sig figs were wrong. I got 3/6 points back and bumped my grade to a B, which is the messed up part when I should've gotten 6/6. He literally started making up his OWN RULES about sig figs, like sig figs only count when they're in scientific notation, and only 2 decimal places count (LIKE WHAT??). I know my math was correct as well as the sig figs, so me and a few friends that got screwed over by this are going to attend office hours to see if we can still get those points back. If he doesn't budge (most likely he won't since he's stubborn) what should we do?? There's only 3 exams for this class, so it's important to do well on them.
Afterwards, when we were going over the exam he told the entire class I'll give you points if you circled "none of the above" as an answer if the sig figs were wrong. I got 3/6 points back and bumped my grade to a B, which is the messed up part when I should've gotten 6/6. He literally started making up his OWN RULES about sig figs, like sig figs only count when they're in scientific notation, and only 2 decimal places count (LIKE WHAT??). I know my math was correct as well as the sig figs, so me and a few friends that got screwed over by this are going to attend office hours to see if we can still get those points back. If he doesn't budge (most likely he won't since he's stubborn) what should we do?? There's only 3 exams for this class, so it's important to do well on them.