Dr. Clarke is actually better than what these evaluations say. My research trainer actually said that I was lucky to have him for a professor. I never write evaluations, but I had to for Dr. Clarke, because he is my favorite and best professor at UCLA, and I am a senior. His class is challenging, but hey, it's 153C and you don't have much other options. Go to all the lectures, study before the quizes everyweek, because they are really big part of your grade and it's easy to get good score than midterms and the final. He is estremely passionate about teaching and you can tell, because you will really be paying attention during the lectures. Overall..take him for 153C and you won't regret.