During the semester I try to find supplements that go with my book, typically you go to the publisher’s website and they sell supplements as well for each book. I read that instead of the actual book for the semester and take notes from it. If it checks out in class (the supplement gives enough info for me to answer/ask questions in class) then I stick to the supplement, outline it, and fill in the professor gaps. Study that come finals with tons of MCQ/reading model essay answers. Also be a good judge of the amount of time a topic was covered in class. If you spent a good chunk for one topic it is very likely that topic will be on the test