1, clear theme

Explain the theme of this unit. The theme of Unit 4 is "Parallelism and Crossing". After determining this theme, all knowledge points and contents should be centered around this theme.

Step 2 Collect relevant knowledge

After determining the theme, you need to collect all the knowledge points related to the theme. This process can be completed by reading textbooks, reference books or online search. For the theme of "parallelism and intersection", the related knowledge points include the definition of parallelism, the drawing of parallel lines, the definition of intersection, the drawing of intersecting lines and so on.

Step 3 draw a mind map

After collecting the relevant knowledge, you can start drawing mind maps. First draw a theme in the center of the canvas, that is, "parallelism and intersection". Then all the knowledge points are connected according to the theme to form a first-level branch. The theme of "parallelism and intersection" can be divided into two first-level branches of "parallelism" and "intersection", and then subdivided into smaller knowledge points under each branch, such as "parallel definition" and "parallel drawing" and so on.

4, improve the mind map

After completing the drawing of the first-level branch, it is necessary to further refine the content of each knowledge point. For example, under the definition of parallelism, details such as "two straight lines do not intersect in the same plane" can be added. At the same time, you can also mark different knowledge points with different colors or symbols to make mind maps more vivid and interesting.

Matters needing attention in drawing mathematical mind map;

1, keep it simple and clear: The main purpose of mind mapping is to help students better understand mathematics knowledge, so keep it simple and clear. Avoid using too many words and symbols in mind maps, and try to use keywords and symbols to summarize knowledge points. This can help students to remember and understand more effectively.

2. Draw branches: According to the theme of this unit, relevant knowledge points and concepts are extended from the central theme as branches. For each branch, you can use keywords or phrases to summarize its content. We must keep an appropriate branch distance, so as to clearly show the relationship between various knowledge points in the subsequent mind map.

3. Label connectors: In the mind map, arrows or connectors can be used to indicate the connection between different knowledge points. By labeling connectors, we can show the dependencies between different knowledge points and their interactions. This helps students to better understand the knowledge system of this unit and improve their problem-solving ability.

4. Use colors and graphics: Using different colors and graphics in mind maps can help students better remember and understand knowledge points. Different colors can be used to distinguish different knowledge points or branches, and graphics can be used to represent various shapes or patterns. This can not only enhance the visual effect of mind mapping, but also help students better understand and remember the mathematical knowledge of this unit.