实验是科学的基础,是培养学生观察、动手、思维能力的重要手段,是完成教学活动必不可少的环节。但实验课堂又是比较难把握的,教学是“教”与“学”的有机结合,也是教师主导作用与学生主体作用的有机结合,只有把握好两者的关系,才能达到教学的目的。 Experiment is the basis of science, is an important means of training students’ ability of observation, practice and thinking, and is an indispensable part of completing teaching activities. However, the experimental classroom is difficult to grasp. Teaching is the organic combination of teaching and learning. It is also an organic combination of the leading role of teachers and the role of students. Only by grasping the relationship between the two can the teaching be achieved the goal of.