David teaches in a very natural manner that makes it easy to approach the material.

Instead of copying a bunch of formulas onto the board, he derives formulas to solve general equations and shows you how other questions are really just variations of a few key equations.

He is very welcoming of questions during class. He has interesting anecdotes and a consistently upbeat demeanor.

He is a nice professor. He even held his own review sessions for the midterms and the final, but I think most students like him simply because the exams are easy.

Let's say this, if you wanna learn something and have easy tests, go ahead and take this professor. The point is that never go to his office hour because you never have a chance to ask a question. And I kinda like his 100% final because the final is easy and I got an A because of that.

Good professor easy midterms and finals but sometimes he makes tedious explanations. Take 33B with him and you would not regret. His practice midterms and finals are very useful he even uses some of them as the final exam questions. Take this class with him and you will get an easy A. By the way he also gives out A+.