? "Teaching is for not teaching" and "Learning is for re-learning" are the complete expressions of Ye Shengtao's teaching thought, the core essence of which is that the ultimate goal of teaching is to let students learn independently and actively. Teaching is the means, not teaching is the purpose; Learning is the starting point, and re-learning is the new starting point.

Psychological research shows that there are five levels of learning: willing to learn, willing to learn, eager to learn, diligent to learn and independent to learn. Autonomous learning is advanced learning, which needs not only the corresponding learning ability as support, but also the corresponding psychological foundation as guarantee, that is, independent personality and independent character. What kind of teaching does this require? In this regard, Mr. Ye Shengtao made a vivid metaphor, just like parents teach their children to walk, start to help, gradually help, and finally get rid of it.

? The essence of teaching is to let students learn to learn and have the ability of autonomous learning; It is to let students learn to be independent and have the consciousness of independent learning. Being satisfied with the cultivation of ability is not a complete teaching, but also requires the cultivation of independent personality, which is more important. When students have independent consciousness and ability, they may not teach.

? In fact, students have the ability of independent study and independent personality. If they lack enough motivation to learn, they can only become passive learners. The significance of "learning is re-learning" is that learning is regarded as a process that is always on the road, not a final result.

? Learn to learn, but also take the initiative to learn, there is an endless desire to learn. The former study inspires the latter study, which is the source of motivation for the latter study. It is a teacher's duty to keep learning desire and curiosity.

? Confucius said, "Learn to be yourself." The purpose of learning is to make yourself better, which is the need of your inner spiritual development. Teaching is a kind of spiritual enlightenment, which is to ignite students' enthusiasm for learning and is the driving force for learning. In this sense, not teaching is actually more intelligent teaching.

? In this way, we can summarize "teaching is to not teach, and learning is to learn again" as "teaching without teaching, learning and learning again". The purpose of teaching is to cultivate students' autonomous learning ability and self-awareness, and to trigger students' continuous learning behavior, thus forming the needs of lifelong learning.

? Only teachers' "not teaching" can leave time and space for students' "re-learning"; Only when students need to "learn again" can teachers' wisdom of "not teaching" be improved. This is the wisdom expression of teaching and learning, which embodies dialectical thinking, transformation thinking and development thinking. It is as simple as words, but it has profound philosophical significance.