Reviews of professor Philip Kopel

Rating: 5.0/5, difficulty: 3.0/5
I took his online 161 class. He was an absolutely wonderful professor. The lectures were taught well and he easily explained the material in ways that made sense. I absolutely recommend him.

Rating: 1.0/5, difficulty: 5.0/5
DON'T DO IT. Don't spend those 2k on a course that's prepared by a professor who simply doesn't care if you pass the course, learn the material, and is a weed out course that makes you contemplate your entire existence. You're better off learning this material in YouTube, pay for the no ads, and you'll be set. The math department should be ashamed.

Rating: 5.0/5, difficulty: 3.0/5
This is the 3rd time I've taken a course with Phil as the professor and I would recommend it to anyone if possible. As long as you pay attention in class and ask questions you will do well in class. If you don't understand make sure to ask because Phil will make sure to reexplain it until you do.

Rating: 1.0/5, difficulty: 4.0/5
Do not buy textbook for Math 161, never used it, and my GTA even told me not to use it. 
I did not have Phil as an instructor, but as a coordinator. The keys were often wrong, grading guidelines were hardly given, and you cannot make anything up, even with a university sanctioned event. If you do have him, GO TO THE CALC CENTER, the GTAs help lots

Rating: 1.0/5, difficulty: 4.0/5
My class was entirely taught by a GTA. The GTA was cool, but we never really saw Kopel at all. This often led to confusion because of how many people info was going through. A few times, our class room was taken and we had to find a new one. Classmates have been marked off on exams for strange reasons. Be ready to get help if you take this class.

Rating: 5.0/5, difficulty: 3.0/5
He would know me by my saying, "you have got to be the dopest math teacher I have ever had," upon finishing MATH340 with him over summer. He was also my Calc 3 (MATH261) prof, and is very clear and concise in lectures. Do no expect handouts, this is calculus, but if you show up and ask questions, there isn't a topic he cannot teach anyone. 10/10

Rating: 4.0/5, difficulty: 3.0/5
You can see the knowledge he has while he teaches. He may not explain everything but if you ask questions he gives great explanations, he wants his students to perform well and understand the concepts. Repetition and recognition are the most important part of Calc 3 in my mind. Go to lecture and do the HW, ask questions and you will be just fine

Rating: 5.0/5, difficulty: 3.0/5
I really enjoyed kopel as a professor. His lectures are all practice problems, he does every type of question you could imagine and he explains them all very well. I know some of his courses are taught by TA's but if you actually have him you are lucky because he writes the exams so he will teach you exactly what you need to know.