Reviews of professor Ran Xu

Rating: 2.0/5, difficulty: 3.0/5
He's very smart but definitely not a good teacher. He lacks experience and his lectures (with powerpoint, for Math yes) are very confusing. His teaching style did not work at all for me plus he doesn't finish started exercises. I had to go to another 209 teacher's lectures in the midst of the semester to save my uderstanding & grades. Useless book

Rating: 2.0/5, difficulty: 4.0/5
Hes extremely intelligent and knows his math. However, Calculus already being a troublesome subject for many, requires a prof that really explains the material in different ways. He often would do examples, but never explained HOW to actually solve the problems. Its also difficult to understand what hes saying, but I guess that depends on you.