1. record. In the process of listening or reading, remember as many meaningful arguments, concepts and other lecture contents as possible in the main column (divide a notebook into two parts, with the main column on the left and the auxiliary column on the right). 2. reduce. Summarize (simplify) these arguments and concepts concisely in the memory column, that is, the sub-column as soon as possible after class. 3. recite. Cover the main column, only use the notes in the memory column, and describe the class content as perfectly as possible. 4. reflect. Distinguish your thoughts, opinions and experiences from the lecture content, write them in a separate part of a card or notebook, add a title and index, make an outline, abstract and classify them. And file it at any time. 5. Review (review) Take about ten minutes to review your notes quickly every week, mainly by looking at the memory column first and the main column appropriately. The above steps are taken from the network. Personally, I think this method of taking notes is very useful for consolidating knowledge. Hold on. This may be a problem. But if you really want to take notes. You can apply it to one subject to see the effect before deciding whether to use it in other subjects. There's another way. Is to simply take notes in the notebook during class. Give priority to listening. Then write down your notes in a notebook in detail after class. Of course. The premise of all notes is listening. Never give up listening in pursuit of complete notes. How can you have complete notes without listening completely? Just mechanical recording can't achieve the effect. The most suitable note-taking method needs to be explored and improved in continuous practice.