We continued learning about proof in this week's class. Danny helped us solve some sample questions. In Friday's lecture, we learned about proof that needs to discuss in different case.
I found that I need to concentrate every minute in this class. In Friday's lecture, I was unable to catch up what is being taught after just picking up my eraser from the ground. Maybe it is just that I missed the key point coincidentally. It is really hard to distinguish what is course material and what is irrelevant from Danny's lecture because some of his joke is weird and his voice is not that clear. So, the best way is to learn is to try to concentrate on the lecture. In addition, I still find that some of his writing is not recognizable. For example, in Friday's lecture, when proving n^2+n is even number, Danny writes something like "N closed under +, *", and then the problem is solved. It doesn't make any sense to me. I probably need to go to his office hour to ask him about it.
The mark of our first test came out this week. I got 2 marks wrong for the first question, which is my most confident part of the test. I could not make it for this week's Danny's office hour so that I did not get the test. I am going to get the test next week and look at it carefully to see what my question is. I am satisfied with the test since I was not confident at all for this class and treated it as the hardest class this semester before the test, but I also feel bad about not getting full mark. The first question is the easiest and I should do it right completely. Just be careful in the next test and listen carefully during the lecture.
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