How do teachers regulate students' attention in class?

I heard a teacher talk about some of his experiences: when he found the students absent-minded in class, he deliberately whispered an interesting little story or joke, and the students who listened carefully would laugh because of the story or joke. In this way, students who are absent-minded will also be infected, and they want to know why everyone is laughing, so they will concentrate when listening to the lecture.

Yes, teachers should have some methods to control students' attention. Suhomlinski suggested that the problem of controlling attention is one of the most detailed and inadequately studied areas in teachers' work. To control attention, we must understand children's psychology and their age characteristics. There is only one way to grasp children's attention, that is, to form, establish and maintain such an inner state of children-that is, a state of high emotions and exciting intelligence, so that children can experience their pride in pursuing truth and carrying out mental activities.

In the process of teaching, we should carry out appropriate expansion and extension according to the content of teaching to serve students' learning in class. That is, what Suhomlinski said can expand students' knowledge background. What teachers teach in the classroom can touch students one by one, and they will be interested. At this time, they will have the desire and motivation to think, and they will feel the fun of classroom teaching. I think at this time, our teaching has been successful. Let's not emphasize the students' concentration any more.