Situma is terrible at leading this course. First she raised the grading scale by two points, then made the midterm and CUMULATIVE (including the pre-midterm material) final worth 30% of the grade each. The lab reports, which actually make up most of the work, are only worth 20%. The TAs have a set standard on grading, so if you get into a section with a TA who doesn't know all of the material (yes that actually happened - we had to show the TA how to solve a certain problem, and what the "left" and "right" equilibrium shift actually is), you're out of luck, because if your answers are not EXACTLY like what she has written down, that's points off. She is nice enough, but your experience with her depends only on what your TA is like, and she won't allow most grades to be disputed.