九年义务教育物理新课标指出:物理课程要使学生保持对自然界的好奇,发展对科学的探索兴趣,在了解和认识自然的过程中有满足感和兴奋感。作为课堂学习的组织者和引导者的教师,只有在平时的教学中充分发挥学生的主体作用,多为学生提供参与课堂教学活动的机会,解放学生的眼、口、手、脑,使学生在课堂上真正地动起来,才能激起学生对物理的探究热情和学习欲望,从而 Nine years of compulsory education physical new curriculum that: physical curricula to enable students to keep curiosity about nature, to develop scientific interest in exploration, understanding and understanding of nature in the process of satisfaction and excitement. As the teacher who organizes and directs the classroom learning, only by giving full play to the student's main body function in usual teaching, it can provide students more opportunities to participate in the classroom teaching activities, liberate the students' eyes, mouth, hands and brain, In the classroom really move up, can arouse students' enthusiasm for the exploration of physics and learning desire, thus