Step 1: After getting familiar with the knowledge points in the book, draw a mathematical structure diagram in your mind with the ability of association.

The second step: draw a mathematical mind map and meditate on keywords, routes, etc.

The third step: let the mind map drawn in your mind combine with words. Every time I see this knowledge, I can think of various branch topics through this mind map XMind. After these three steps, we can easily find the image of mathematical mind map in the brain map, and then observe nature from the image. Therefore, mind mapping is an effective mathematics learning method.