Reviews of professor Salahadin Lotfi

Rating: 5.0/5, difficulty: 3.0/5
The class is not easy, but doable. He offers a lot of extra credit, is very kind and quick to answer questions. The weekly homework is nothing like the exams though which makes them more difficult.

Rating: 4.0/5, difficulty: 3.0/5
Since this was an online class, I don't know his teaching skills. For an online class, the lesson plans were clear and easily accessible. He was a quick responder to emails and communicated with the class a lot. He always offers extra credit which is a plus. The class was mildly hard, but that's not his fault. He made it as clear as possible.

Rating: 5.0/5, difficulty: 2.0/5
I never took a math class online and was nervous to, but it turns out there was no need to worry because the way the material was organized and explained made this course pretty easy! We took 3 exams and the lowest one got dropped. The problem sets were easy, and his responses to questions over email were easy to understand. I recommend him!

Rating: 4.0/5, difficulty: 4.0/5
Answers email pretty quick and both him and his current T.A. are helpful if you reach out to them individually. Practice sessions with the T.A. are more intimate than they are described initially which made getting 1:1 help easy.

Rating: 4.0/5, difficulty: 3.0/5
He is really fun. Tries to come up with new examples...I would recommend him... He is knowledgeable...