1, we need to make clear the goal and content of learning the theme of "corner" in senior two. In mathematics, the understanding of angle is the basic knowledge of geometry, which is of great significance for cultivating students' spatial concept and reasoning ability. Draw a circle in the center to show the theme of "corner". In the circle, you can write the keywords "What is an angle", "Types of angles" and "How to measure angles".

2. Starting from the central circle, draw three branches, which respectively represent "types of angles", "characteristics of angles" and "how to measure angles". Under the branch of "types of angles", smaller branches can be drawn, and concepts related to angles such as acute angle, right angle, obtuse angle, right angle and fillet can be written.

3. Under the branch of "Characteristics of the Angle", you can draw a smaller branch and write concepts related to the characteristics of the angle, such as "There are two rays", "There is an included angle between the two rays" and "The degree of the angle can be changed". Under the branch "How to measure angles", you can draw a smaller branch and write down the measuring tools and methods such as "using protractor" and "using triangle".

4. Under each small branch, the corresponding keywords or important information can be marked with different colors or symbols. Finally, according to the actual situation, we can get a complete angle of the mind map sketch.

The concept of mind mapping

1. Mind mapping is a tool to express concepts and ideas graphically. It helps people to better understand and remember what they have learned by classifying, layering, organizing and integrating information. Mind mapping starts from a central theme and extends to several sub-themes, and each sub-theme can be further extended to form a clear knowledge network.

2. There are many ways to draw mind maps, including hand-drawing, software generation, web page making and so on. Among them, hand-drawing is the most commonly used and simplest way, and you can choose paper and colored pens to draw according to your personal preferences. Software generation is more efficient and beautiful. Common mindmanager include MindNode, XMind, MindMeister, etc.

3. Mind mapping is widely used in education, business, personal and other fields. In education, mind mapping can help students better understand and remember knowledge and improve learning efficiency. In business, mind mapping can help enterprises organize information, make decision analysis and plan projects. Personally, mind mapping can help people organize and express their ideas better.