1. Draw the first branch of the mind map at one o'clock in the upper right corner of the center. 2. Decide the branching direction of mind map according to the branching amount. Just draw the numbers of the four branches clockwise, and then mark them with serial numbers. 3. After drawing the main branch, if there are subdivision branches, continue to grow subdivision branches along the main branch and mark the serial number in turn. 4. The order of subdivision branches is marked from top to bottom, and the writing is from left to right. The direction indicated by the arrow refers to the writing order and the direction of the text label.

Mind map, English is mind map, also known as mind map, which is an effective graphic thinking tool to express divergent thinking. It is simple, effective and efficient, and it is a practical thinking tool. Mind mapping uses the skills of paying equal attention to graphics and texts, showing the relationship between topics at all levels with hierarchical diagrams of mutual subordination and correlation, and establishing memory links between topic keywords, images and colors.