The main knowledge of Unit 6 of Grade Two Mathematics is two-digit multiplication. As the center of mind map, you can draw a favorite graphic representation. The five contents of this unit are represented by branches, and each branch is subdivided into several important knowledge points as the main content of mind map.

1. Use the simplest language to determine the mathematical theme to be drawn, taking "angle measurement" as an example.

2. The angle is a graph composed of two rays drawn from a point, so start with the ray.

3. Draw line segments and straight lines with rays and compare their similarities and differences.

4. Mark the angle of key knowledge points on the mind map.

The role of mind mapping:

1. Integrating information: Mind mapping can integrate various information and concepts in a graphical way, making different knowledge points interrelated and forming a complete knowledge system. This helps us to build a complex knowledge structure in our brain and strengthen our understanding and memory.

2. Promote memory: Mind maps express information in a visual way, which can help people remember complex information and concepts more easily. The characteristics of mind map, such as clear hierarchy and prominent keywords, are also helpful to improve memory efficiency.

3. Improve creativity: Mind mapping can stimulate people's creativity and inspiration. Through the combination and reorganization of different elements, mind mapping helps to discover new ideas and innovations.

4. Improve communication efficiency: Mind mapping can help people express complex information more clearly and concisely. It can help people organize their thoughts quickly in communication and improve the accuracy and efficiency of communication.

5. Promote the visualization and operability of brain thinking dimension: Mind mapping reflects people's creative thinking process, which can not only help people better understand and apply knowledge, but also improve learning and work efficiency.