Mind mapping tutorial:

1. Determine the central theme: The central theme of Unit 4 is the main learning content of this unit, such as the meaning and nature of decimals.

2. List the main branches: according to the teaching materials or other materials, list the main knowledge points of this unit, which is the main branch of mind map.

3. Add details: For each main branch, add more specific details, such as decimal reading, writing, size comparison, addition and subtraction, etc.

4. Use colors and images: Use different colors and images to highlight different knowledge points and branches, making mind maps more vivid and easy to understand.

Mind mapping example:

1. Write down the meaning and nature of the fourth unit-the middle decimal.

2. Draw several main branches outward from the central theme, such as decimal reading, decimal writing, decimal size comparison, decimal addition and subtraction, etc.

3. For each main branch, add more specific details. For example, under the branch of decimal reading, you can add details such as reading the digits after the decimal point through single digits and reading the digits before the decimal point through integers. Under the addition and subtraction branch of decimals, you can add details such as decimal point alignment and bitwise addition and subtraction.

4. Use different colors and images to highlight different knowledge points and branches. For example, you can use red to highlight important formulas or theorems, blue to highlight knowledge points that need to be memorized, and images to represent specific mathematical problems or situations.

Finally, remember to review and modify the mind map after drawing it to ensure the accuracy and completeness of the content.

The importance of making mind maps;

1, enhance understanding and memory: Mind mapping can better help us understand and remember the learning content through the combination of graphics and words. Compared with traditional linear notes, mind map can show the relationship and hierarchical structure of knowledge points more intuitively, and it is easier for us to form deep memory.

2. Improve learning and thinking ability: Making mind maps requires us to think and analyze deeply, which is helpful to improve our learning and thinking ability. In the production process, we need to refine and summarize the learning content, and at the same time, we need to develop association and imagination to link the relationship between various knowledge points, which is helpful to cultivate our logical thinking and creative thinking.

3. Enhance autonomous learning ability: Making mind maps requires us to organize and present learning content independently, which is helpful to cultivate our autonomous learning ability. By making mind maps, we can better grasp our own learning progress and rhythm, and at the same time, we can make adjustments and improvements according to personal needs and actual conditions, so as to make learning more efficient and targeted.

4. Improve organizational expression ability: Mind mapping can clearly show the relationship and hierarchical structure between knowledge points, which helps us to better organize and express our thoughts and ideas. In writing, speaking, reporting and other occasions, mind maps can be used to sort out ideas, arrange content, highlight key points, and make the expression more clear, organized and convincing.

5. Promote learning and innovation: Making mind maps requires us to constantly explore and innovate, which helps to stimulate our interest in learning and innovative spirit. By constantly trying new methods and ideas, we can better find and solve problems, and at the same time provide more enlightenment and inspiration for learning and innovation.