Reviews of professor David Liebal

Rating: 2.0/5, difficulty: 4.0/5
He's a good guy, but very disorganized. He takes forever to grade. In our case, we got no grades back at the end of the semester. He stumbled over his own work while doing problems on the board. He would say one thing, then do another. Grades for example: "This will be graded by Sunday." It was not graded by Sunday. YouTube helps tremendously.

Rating: 5.0/5, difficulty: 3.0/5
Great professor, can not complain.