Reviews of professor Xiaofei Chang

Rating: 5.0/5, difficulty: 3.0/5
This is my fourth time taking College Algebra, I have failed 3 times. Mr. Chang has exceeded my expectations- he explains things very well. He is understanding and allows test retakes- a rarity. He even responded to an email a few minutes after I sent it- at 2am. I cried when I received my first exam score because I have never done this well! Wow!

Rating: 4.0/5, difficulty: 3.0/5
I'll admit that I mostly focused on the textbook to teach me than the professor, but whenever I was listening, he was a great teacher and was devoted to getting us through our weekly problems for the new section.