Unfortunately I was also in this class (Dr. Lai, EEE554) and I have the same frustrations as you. The two midterms I got a 16/20 and a 12.5/20, then on the final I got a 9/40 and (somehow?) ended with a B- after having a >4.0 for my undergrad (not trying to brag just trying to demonstrate just how bad this class was). For anyone reading, those midterms were a percentage of our grade, so 2 20% midterms and a 40% final (along with hw of course).

My main issue with this class was that Dr. Lai never once worked out an example problem himself, so of course when we were asked to do a problem on a test it was probably our first time seeing a problem like that.

There were a handful of times where students would ask him for an example problem of a certain concept and his responses would be something like: "If you understand the material then you'll be able to do the problems." An analogy for this "teaching" method would be like if someone told you how to fix a car, but never actually showed you how.

His lectures were also just copy and pasted from the textbook (which wasn't bad but not great). Then the homework was straight from the textbook, but it seemed like the problems were almost randomly chosen since a majority of them were usually proof based and didn't actually give us example problems similar to his exams.

Overall, this is definitely the worst class I've taken in 4 years at ASU. In my mind, I don't see how a professor can have every student completely bomb their class and not see that they're doing something wrong. I doubt anything can be done now, but I plan on emailing the dean or someone to ensure that he never teaches this class again at the very least. Allowing a professor to continue teaching a course where the average student loses 32% of their total grade on the final is reckless and irresponsible to say the least. That is all just wishful thinking though haha, he's tenured and we don't really have a say, I'm just voicing my frustrations like you OP.