一、问题的提出科学是一门以实验为基础的学科,实验教学在科学学习中有不可替代的地位。课改前,对实验教学活动,从实验前的准备到实验的结论,教师包揽了实验的绝大部分过程,甚至全部包办代替。这样,学生对实验的操作过程、实验中的各种现象、实验的结论只能靠死记硬背了,虽然在考试中也取得了好的成绩,而实际是很大程度上限制了学生创新意识和能力的发展。课改后,教师的教育理念已经发生了变化,教师 First, the question raised Science is an experiment-based discipline, experimental teaching in science has an irreplaceable position. Before the course reform, the experimental teaching activities, from the preparation before the experiment to the conclusion of the experiment, the teacher swept most of the experimental process, and even all arranged instead. In this way, the students on the operation of the experiment, all the phenomena in the experiment, the conclusion of the experiment can only rely on rote, though in the examination also achieved good results, but in fact is to a large extent limited the students' sense of innovation And ability to develop. After the curriculum reform, the teacher's educational philosophy has changed, teachers