1. The first step is to sort out the mathematical knowledge and construct the contents used in the mind map on paper or in your mind. Then, go online.

2. Refer to the chart built on paper or in your mind, edit it, and draw the center point and fulcrum.

3. Fill in the content, fill in the theme of mind map at the central point, and fill in the specific content at the branch points. Mind maps don't write too much, they are generally simple summaries.

4. After the content is filled in, you can set the background and font. In the menu bar, there are corresponding modes. According to personal preference, choose the corresponding mode.

5. After setting, you can export. Also in the menu bar, you can choose the export mode.

Note: when drawing a mind map, you must pay attention to saving it. Otherwise, an accident is likely to happen.

The construction of mind map is the operation process of determining sub-topics according to the central theme and then explaining the sub-topics in detail. Let's draw a mind map with the division of primary schools as an example.

1, determine the central theme. This has been mentioned above. The drawing of mind map is around the central theme, the division of primary schools is the central theme, and the knowledge points around the division of primary schools are sub-themes. At this time, we should think more and use divergent ideas.

2. Right-click one end of the central theme, add the node of the sub-theme, and repeat the operation to add the required node.