Professor Ding is kind of a GOAT in that he prepares you a lot for the tests. He provides study guides very similar to the exams, so as long as you do the study guides, you'll get a good score. He also allows group submissions for the homework, which is great. I definitely leaned into these policies and probably didn't do as much work as my group-mates, so I didn't absorb that much of the material. That being said, his lectures are extremely boring and disorganized in that they are not organized by topic at all and he just starts typing things. He also does not record these lectures. As someone with a social science background, it was hard to adjust to the style of the class because most of the time I had no idea what was going on.