It is a good choice for students who review their studies to choose knowledge mind map, clarify knowledge points and analyze important and difficult points. Teacher Tang will sort out the mind map of eight units in the second volume of grade four for everyone, hoping to help everyone grasp it as a whole in the review process. Knowledge points and difficulties in this semester.

In this way, the review can be more targeted. Review is more efficient. The key contents and sections in the learning process of the second volume of the fourth grade mainly include the meaning and nature of decimals, the law of addition and subtraction of decimals and simple triangle operation.

Through the comprehensive analysis of the chapters in the second volume of the fourth grade and the understanding of the key points and difficulties, it is presented in the form of intellectual mind map, which can analyze the key points and difficulties of each chapter as a whole. The learning skills can help you improve your learning efficiency, and the key and difficult points of these chapters need to be reviewed more time.

No matter which chapter you study, you need students to learn from the same angle of thinking, not just the method of solving problems, which will also have a certain impact on subsequent learning.

Mind map, English is a mind map, also known as mind map, which is an effective graphic thinking tool to express divergent thinking. It is simple, effective and efficient, and it is a practical thinking tool.