2. Teachers should give positive comments in time in the process of classroom teaching. Suhomlinski said that students should not be given failing grades at any time. In mathematics teaching, we often see many students actively thinking about problems and trying to speak. Whether gifted students or students with learning difficulties, when their ideas or calculation methods are affirmed by teachers, we can see from their eyes and expressions that they have been greatly satisfied, and they will repeatedly study and discuss when they encounter difficulties in their future study. This is the teacher's positive evaluation, which urges students to study actively.
3. Create a happy learning environment, stimulate their strong interest in learning, and make them like mathematics, so as to realize the automation of learning and improve the efficiency of classroom learning. In addition, humorous language expression is also very important, which can relax the nerves of students who are in a state of nervous thinking in class, adjust the classroom atmosphere appropriately, and let students devote themselves to the next learning session more energetically. Therefore, humorous language is the lubricant of classroom teaching.