The lectures are very good and engaging. However, MOST of the quizzes I've taken so far, the material does not match what's taught in the lectures. For example, I finished a module ("Limits in Motion") teaching how to calculate speed of a moving objects accurately by using as small of time intervals as possible. I feel confident and interested to apply the strategies and techniques I've just learned to the quiz. However, the quiz has three questions, all giving me point coordinates, and asking me to determine the y-coordinate of the point B. I really pray my future professors don't teach this way. "POP QUIZ!!!" Wow.