随着高中新课程改革的推进,课堂中关注学生体验、引入科学探究、注重师生互动等已被多数教师所接受.但是,如何关注学生体验、如何进行科学探究、如何有效地开展师生互动,却是一个复杂的教学艺术问题.在听课和交流中不难发现,常态课中占大量时间的还是教师的讲授,虽然讲授的信息量较大,但学 With the advancement of the new curriculum reform in high school, attention has been paid to the students ’experiences in the classroom, the introduction of scientific inquiry and the interaction between teachers and students, etc. However, how to pay attention to the students’ experience, how to conduct scientific inquiry and how to effectively carry out the interaction between teachers and students , But it is a complicated teaching art problem.It is not difficult to find in the lectures and exchanges that the normal class occupies a large amount of time or is the teacher’s teaching although the amount of information taught is large,