Laws, theories, authoritative questions, formulas should be copied verbatim. Major points are more easily visualized in memory when they are made to stand out. Group related details into categories. Use a large loose-leaf ringed binder. This leads to better organization.
Instructors usually work from a set of notes, a definite organization of material.
It is easier to take notes if you are familiar with the general content ahead of time. Review class notes from the previous class. Keep the notes from each course separate. Start each lecture with date and general topic. This prevents confusion later on and helps in reviewing.