First, list the main contents of each unit of this textbook, then integrate them according to the relationship between the contents and the four major fields, and then list the mind map according to the logical relationship between knowledge, paying attention to reflecting the context level of knowledge.

Making mind maps requires your imagination and creativity. Similarly, the drawing time also depends on your personal ability, whether you can quickly find the right keywords in the content, whether you can omit a string of words to the maximum extent, or a small illustration, and a symbol can replace it. Although it takes some time to do mind mapping, the time spent is not wasted. Because in the process of making a map, you are equivalent to enhancing the memory of the brain. And after using the mind map, you will remember the content more firmly and deeply. Practice makes perfect.