I decided to take AP Chemistry but since the AP scores for the teacher at my school are spectacularly low, I decided to take it outside of school in an independent studies program my school offers. I expected the teacher to be more competent than my school's but, 3 weeks in, I have not had a good impression. Our first test was largely based on things that we had not covered in class. Since we meet only twice a week, I'm guessing that I will have to teach myself the material. Our book, Chemistry Zumdahl's 5th edition, isn't very explanatory, so I was wondering if someone could suggest something that could help me out. I want to get an A and at least a 4 on the AP exam so I really need help. I don't want this class to be my first ever B.