This teacher basically gives his students a fill-in the blanks for all the class notes, so you show up to his class and he tells you what that blanks are and then you have all the information you need from the notes and a textbook (which you are allowed to use during exams). Exams are super easy to ace if you show up to class and he lets you have a memory aid (on which you can copy the entire class notes) of two pages.