First, the mind mapping method:
1, taking proportion as the central theme, according to the proportion of the textbook, this unit mainly includes five parts: ratio, ratio, ratio and ratio, direct ratio and inverse ratio, and scale, which can be used as the second-level topic of mind map.
2. The key content of ratio is to understand the meaning of ratio. Division of two numbers is also called the ratio of two numbers. The quotient obtained by dividing the former term of the ratio by the latter term is called the ratio, and the latter term of the ratio cannot be zero. Ratio division, the former term of ratio is equivalent to dividend, the latter term of ratio is equivalent to divisor, and ratio is equivalent to quotient and other knowledge points. Learn the basic properties of ratio and the methods of finding and transforming ratio.
3. Proportion focuses on the concept and method of proportional distribution. The meaning of proportion means that two equal formulas are called proportion, attention points and the basic properties of proportion.
Second, a brief introduction to mind mapping:
1. Mind mapping, also known as mind mapping, is an effective graphic thinking tool to express divergent thinking? It is simple but effective and efficient, and it is a practical thinking tool.
2. Mind mapping uses the skills of paying equal attention to graphics and texts to express the relationship between topics at all levels with subordinate and interrelated hierarchical diagrams, and to establish memory links between topic keywords, images and colors.
3. Mind mapping makes full use of the functions of the left and right brain and the laws of memory, reading and thinking to help people develop in a balanced way between science and art, logic and imagination, thus opening up the infinite potential of the human brain. Therefore, mind mapping has a powerful function of human thinking.