The philosophy of note-taking is patently absurd when you really think about it. The idea is that in class, the teacher verbally recites relevant facts, while students are supposed to split their attention between listening and writing them down, essentially taking dictation and creating a very low-fidelity personal copy of their textbook on the fly. Then the students are supposed to go home and re-learn (or learn for the first time) the information that the teacher gave them in class from this hastily constructed replica.