Reviews of professor Jun Fei

Rating: 3.0/5, difficulty: 3.0/5
Not a bad professor but not good either. When taking an online class it was really hard to understand the lectures and notes were hard to read. Expects a lot from students. Understand the homework you will do well. If you take him it's not the end of the world, but there will be a lot of independent learning.

Rating: 5.0/5, difficulty: 3.0/5
A very nice and caring teacher! He explains everything very clearly. He provides practice tests and thorough review before each test. Test correction earns extra points. Definitely recommend him!

Rating: 5.0/5, difficulty: 4.0/5
Optional attendance and popup quizzes are two features of his class. If you tend to abuse the former, you probably cannot do well. His exams are not easy, but they are very similar to the practice tests. You can also get extra points by doing the test correction. I got 12 points for exam 1 and 15 points for exam 2, which raised the grades a lot!

Rating: 1.0/5, difficulty: 5.0/5
Avoid if you can. It is also unclear what is expected of you for test and homework. He mumbles throughout the entire lecture.

Rating: 1.0/5, difficulty: 5.0/5
Has to be one of the worst professors I have ever had. You ask him a question and you barely get an answer. You will be sitting in his lecture not knowing anything he is explaining bc all he says is "If you don't get it then uh study". His hw's are never consistent with his quizzes or lecture chapters. Save yourself the time n dont take the class.

Rating: 3.0/5, difficulty: 3.0/5
Lectures are okay but he doesn't explain what he's doing and if you have a question or are confused he genuinely gets mad. At least one quiz a week and pop quizzes. Most quizzes are open book though, so as long as you take good notes you'll do fine on tests. If you struggle in math I wouldn't recommend this professor in that he's not that helpful.