常言说:“教学有法,但无定法,贵在得法。”“万事开头难”好的开头是成功的一半。教师讲课导入得好,能引起学生注意,激发学生学习兴趣和学习动机,提高学生理解和运用数学的能力,主动地去获取知识。教师在教学中应坚持写案例反思、让教师不断更新教学理念,适合自己的教学方法,提高教学教育水平,开创适合自己不断发展的新天地,让学生在实践中获得新知,让学生处于多元、开放、变化的社会环境中。 As the saying goes, “Teaching has a law, but there is no definite law, and you are at a premium.” “Everything is hard at the beginning.” A good beginning is half the battle. The introduction of teachers’ lectures is very good, which can arouse the attention of students, stimulate students’ interest in learning and motivation of learning, enhance students’ ability to understand and use mathematics, and take the initiative to acquire knowledge. Teachers should insist on writing case reflection in teaching so that teachers can constantly update their teaching concepts, adapt their own teaching methods, improve their teaching and learning level, create a new world suitable for their continuous development, and enable students to acquire new knowledge in practice so that students are diverse and open , Changing social environment.