Awful

Professor Lewis by far the worst teacher I have taken so far. His favorite answer to any question you ask is "I don't know is it? He is a tough grader. All the lectures are are not well explained and he just has you struggle through problems he throws on the PowerPoint.

Good

Lewis's class is unlike any other math class I've ever taken. He grades based on the check marks. Basically, you get a final grade at the end of the semester if you get a certain number of check marks. You can also redo modules/sections numerous times throughout the semester if you don't get them properly the first time. Overall, a good class.