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Whenever my professor said "it's easy to show" and then moved on it felt very hand wavy. The steps weren't obvious to me and didn't become more obvious as the c
by ellisv 3y ago
Whenever my professor said "it's easy to show" and then moved on it felt very hand wavy. The steps weren't obvious to me and didn't become more obvious as the course went on because no one taught me how to think of the "obvious" thing.
- javajosh 3y agoThe worst situation in my college experience was when a prof would go over some mundane part of a proof in excruciating detail, and then hand-wave the important part. I realized later in life it was because they prof didn't understand it, either.
- Tade0 3y agoI had a similar situation after a "last chance" exam for one course. The lecturer was unavailable, so he assigned a substitute to grade the exam. There was a problem there similar to the casting problem (assuming each subsequent candidate has probability P to be better than the previous one, when should we make our pick), only the probabilities were different each time - this wasn't covered in the course material. I deconstructed it by calculating all the probabilities by hand, because I didn't know any other way. The substitute asked me to come by and explain how I solved it, because apparently I was the only one to do so.