The main content of this lesson is the application of mind mapping in mathematics unit arrangement, which is divided into four parts:

1. Review the situation of students;

2. Advantages of mind mapping

3. Drawing steps

4. Case study

The first part: students' review status.

For students, simple duplication, mechanical repetition and single knowledge system;

For the classroom, the pertinence is poor, the method is single, and divergent thinking is ignored.

For parents, if they don't know the review strategy, they will be easily agitated and engage in sea tactics, which will get twice the result with half the effort.

Part II: Advantages of mind mapping.

By using images and colors, knowledge can be more visualized;

Construct knowledge structure and form knowledge map;

Integrate, make the thinking clearer and understand the ins and outs of knowledge.

It can improve children's learning enthusiasm and reduce the learning burden.

The third part: the drawing steps of mind map.

First of all, read the textbook carefully and understand the content.

Secondly, build a framework to understand the classification of knowledge.

Third, sort out the important and difficult knowledge and extract keywords.

Fourth, refine the knowledge framework and improve the mind map.

Part IV: Case analysis:

The teacher intercepted a section of the second-grade mathematics "corner" of the People's Education Edition for analysis.

The main content is the following two pages.

According to the above, we can see that this part can be divided into four parts: understanding angles, understanding right angles, understanding obtuse angles and acute angles, and spelling angles.

Then extract keywords according to the contents of each part and draw a mind map as follows:

The above is the main content of this lesson.