1, preparation tools: prepare a sketch paper, watercolor pen, pencil, eraser, ruler and other tools.

2. Draw the central theme: Draw the theme "Unit 1 of Grade Two Mathematics" in the center of the sketch paper, and then draw a circle around the central theme to indicate the main knowledge points of the unit.

3. Add branches: add branches outside the circle and divide the main knowledge points of the unit into several parts, such as "length unit", "addition and subtraction within 100", "preliminary understanding of angle" and "multiplication in Table (1)".

4. Refine branches: add sub-branches under each branch and list the knowledge points of each part one by one. Different colors can be used to distinguish different knowledge points.

5. Improve the mind map: Finally, mark the corresponding examples or explanations below each knowledge point, so that students can better understand the knowledge points.

In the process of learning, you need to pay attention.

1. Understanding of length units: To master the understanding of centimeters and meters, and understand their practical significance and application. For example, in our daily life, we can use items with shorter centimeters and items with longer meters.

2. Addition and subtraction within 100: You need to master addition and subtraction within100, including addition with or without carry, subtraction without abdication and so on. At the same time, we need to understand the significance and application of addition and subtraction.

3. Preliminary understanding of angles: It is necessary to understand the concept and classification of angles, such as right angle, acute angle and obtuse angle. At the same time, we need to know the size and measurement method of the angle.

4. In-table multiplication: You need to master the concept and calculation method of multiplication, and you also need to understand the relationship and difference between multiplication and addition. In addition, you need to master the use and application of multiplication formula.

5. Pay attention to the mastery and understanding of basic knowledge. Only by mastering the basic knowledge and concepts can we better understand and apply this knowledge.

6. Pay attention to practice and application. Mathematics is a highly applied subject, so we should apply what we have learned to real life. For example, you can use what you have learned to solve simple practical problems, such as shopping and calculating time.