There is no doubt that teaching needs real talent and practical learning. Han Yu said, "As a teacher, I preach, teach and dispel doubts." . In other words, a teacher is a person who teaches truth, studies and answers difficult questions. If a teacher has no real talent and practical learning, and has little or no knowledge of the subject he is teaching, he will not teach well, let alone "dispel doubts", but will mislead children. You know, to teach students a glass of water, you must have a bucket of reserves. And this bucket of water should be tap water. Only in this way can students continuously absorb the source of knowledge under the education of teachers.