Tools/materials: computer, ppt.

1. Draw a main title, namely "three-level score", as the extension area of all branches, as shown in the following figure.

2. As a reflection of thinking, we should first understand the concept of score from the definition and basic elements, as shown in the figure below.

3. On the basis of the concept, expand the reading and writing method of fractions, as shown in the figure below.

4. Followed by the basic classification of scores, that is, the classification of types, according to the denominator and numerator, as shown in the figure below.

5. After the basic type division is completed, there are two further analysis and calculation methods: approximate division and general division, as shown in the following figure.

6. Finally, draw the addition, subtraction, multiplication and division of practical application cases on the right, as shown below.

The role of mind mapping:

1, improve thinking ability:

Mind mapping can help to clear up ideas, decompose complex information into simple thinking units, and thus improve thinking ability.

2, enhance the memory effect:

Mind mapping can help to present a large amount of information in the form of graphics, which is easy to be remembered by the brain.

3. Improve efficiency:

Mind mapping can help to sort out and improve ideas, so as to think deeply about problems and improve thinking efficiency.

4. Promote innovative thinking:

Mind mapping can help find problems, solve problems, find new inspiration and creativity, thus promoting innovative thinking.

5. Teamwork:

Mind mapping can help team members enjoy creativity, further understand problems and improve communication efficiency and effectiveness.

6, nonlinear thinking:

Mind mapping is different from traditional notes. It is linear and can link different ideas together, thus encouraging nonlinear thinking and interdisciplinary thinking.

7. The establishment of knowledge system:

In the process of learning, using mind map can systematize complex knowledge points, which is helpful to better understand and remember knowledge.

8, manage a lot of information:

Mind mapping can help manage a large amount of information, so as to better organize and classify information.