在课堂教学中，教师要给学生营造一种宽松、和谐、民主的探索问题的环境，课堂上老师与学生是朋友，老师是在和学生一起学习，共同探讨，使他们的身心得到彻底解放，在此基础上，鼓励学生大胆质疑。由于学生间存在着个别差异，在质疑问难时，有时往往不能提到点子上、关键处。 In classroom teaching, teachers should give students a relaxed, harmonious and democratic environment for exploring problems. In class, teachers and students are friends. Teachers are learning together with students and discussing so that their bodies and minds will be completely liberated. On this basis, encourage students to boldly question. Due to individual differences among students, when questions and answers are often questioned, ideas and ideas may sometimes fail to be mentioned.