No matter what the knowledge content is, learning is inseparable from memory, and the memory ability varies from person to person, following a basic law. Ebbinghaus, a German psychologist, discovered Ebbinghaus's forgetting curve: when human beings remember, the initial forgetting speed is very fast, and finally it gradually slows down. And taking notes is to reproduce learning or review, so as to achieve the purpose of memory.

How to take notes? Good notes should be conducive to further thinking and review. In addition to choosing appropriate note-taking methods and tools, you should also remember several principles of note-taking:

Use symbols, make good use of abbreviations: give examples as much as possible to make the content visual and systematic; Concise and to the point, list the main points, blank lines between the main points, and avoid writing on the blackboard; When taking notes, hold the mentality that others can understand: the theme is clear and the argument is comprehensive; Clear logic, build a framework; Use charts, symbols and colors to express ideas; Practical priority, with the theme (project) as the core: form habits, review, organize, apply and file regularly. Cornell Notes Cornell Notes Method, also known as 5R Notes Method, is a method proposed by Dr. Walter Polk, director of the Reading and Learning Center of Cornell University in the United States on 1974. It is an effective method that combines memory with learning, thinking and application. Mainly suitable for teaching or reading, especially the preferred method of taking notes in class. Cornell note-taking method includes the following five steps:

Recording: In the process of listening or reading, try to record as many meaningful arguments and concepts as possible in the main column; Records should be concise, clear and clear at a glance, and preliminary treatment can be added; Reduce: summarize the arguments and concepts recorded in the main column concisely in the memory column or column as soon as possible after class; Recitation: use some keywords in the sidebar as clues to the content on the right to recall; When recalling, cover up the main column, and only use the notes in that column to describe what was said in class as perfectly as possible; Reflection: Distinguish the inspiration, ideas, experiences and other contents in the class or reading content, write them at the bottom of the notebook separately, add the title and index, compile an outline and abstract, and classify them; As an extension of thinking, this part tells the facts or phenomena, related theories and uses; Review: Review every once in a while: for example, spend ten minutes every week to review your notes quickly by filling the main column with notes. I believe that after skillfully using Cornell note-taking, more friends will be willing to borrow your notes while improving learning efficiency.

In addition to Cornell's notes, there are other ways to take notes, such as the notes of Tokyo University, Nobujun Komai's fishbone notes and so on.

Notes of the University of Tokyo: The notes page is divided into three columns from left to right; The first column records the main contents of the blackboard; The second column records your own findings and comments; The third column is the summary. Fish bone notes: organize the knowledge into fish bone shapes, first write the fish head, then write the spine that highlights the main line, then the big fish bone and the small fish bone; This method has a sense of hierarchy similar to mind map, which can be used not only for taking notes, but also for discussion or brainstorming.