1. Determine the central theme:
Determine the theme or chapter to be summarized in junior high school mathematics as the central theme of mind map.
2. List the main points:
Around the central theme, list all the important concepts, formulas, theorems, examples and other key points under this theme. These key points will become branches of the mind map.
3. Draw a branch:
Start with the central theme and draw a branch line corresponding to each key point. The length of the branch line should correspond to the importance of the key point.
4. Add details:
Under each key point, add necessary details and explanations, including important formulas, theorem derivation process, problem solving steps, etc. These details can further enrich the content of mind map and make it more hierarchical and complete.
5. Use graphics and colors:
Marking different key points and details with different colors and shapes can make mind maps more vivid and interesting, and easier to understand and remember.
6. Review and modification:
After completing the first draft, carefully review and modify the mind map to ensure that all contents are accurate, clear and logical.
The following is an example of a junior high school math mind map with the theme of "number axis":
Determine the central theme: number axis; List the key points: the definition, point, arrow, reading and application of the number axis; Draw branches: Starting from the central theme, draw branches corresponding to each key point. Add details: under each key point, add corresponding details and explanations. For example, under "Definition of number axis", add "Number axis is a straight line with specified origin, positive direction and unit length".
Add "every point on the number axis represents a real number" under "points on the number axis"; Add an arrow under the arrow of the number axis to indicate the positive direction of the number axis; Under the reading of the number axis, the number it represents on the number axis is read according to the position of the point; Adding the number axis to the application of the number axis can be used to compare sizes, find the opposite number of rational numbers, find the absolute value of rational numbers and so on.
Using graphics and colors, you can use graphics with different colors and shapes to mark different points and details. For example, the definition, point, arrow, reading and application of the number axis can be marked with different graphics or colors to show the difference. Review and modify, carefully review and modify the mind map to ensure that all contents are accurate, clear and logical.