1. Write the words "hour, minute and second" in the central position, and draw a big circle or box around it to represent the whole theme.

2. There are three main branches extending from the center of "hour, minute and second", representing "hour", "minute" and "second" respectively.

3. Write down the corresponding knowledge points and concepts on each branch. For example, you can write "24-hour system" and "12-hour system" on the branch of "time"; You can write "60 minutes" and "half an hour" on the branch of "Minute"; On the branch of "seconds", you can write "60 seconds", "1 minute equals 60 seconds" and so on.

4. Some subdivision concepts or examples can be expanded under each branch. For example, under the branch of "60 minutes", you can write "1 hour =60 minutes", "30 minutes =0.5 hours" and so on.

5. Different colors, icons or symbols can be used to distinguish different knowledge points, which makes the guide map clearer.

6. Try to use concise language and simple charts for easy understanding and memory.

7. Leave enough space on the edge or blank of the whole map for adding new knowledge points or expanding branches later.

The benefits of drawing a mind map

1, easy to understand and remember: mind maps present information in a graphical way, which can help us understand and remember complex content more intuitively. The use of graphics and colors can activate the visual memory of the brain and improve the learning effect.

2. Organizing thinking and extracting core ideas: By constructing mind maps, we can integrate and organize information, help us find key ideas and themes, and link them with related sub-ideas and details. This helps to understand and express ideas effectively.

3. Promote creative thinking: The nonlinear structure of mind map can promote creative thinking. It is not limited by time and space, and can freely organize and adjust the connection relationship of information, helping us find new thinking paths and viewpoints.

4. Promote communication and teamwork: Mind mapping can provide a platform for team members to share and exchange ideas. Using mind map in team discussion can clearly show everyone's thoughts and contributions and promote effective cooperation and enjoyment.