小学科学课程标准提出,小学科学课程是一门以培养科学素质为宗旨的科学启蒙课程,其基本理念是“学生是科学学习的主体,科学学习要始终以探究为核心”。因此,科学课程的实验正在从验证型向探究型过渡,注重培养学生的动手操作能力及科学思维能力。然而在教学实践中,总会有一些现实的问题影响实验教学目标的达成。例如,实验时间持续过长,课堂有限的教学时间无法完成;学校实验设备缺乏,课本上的一些实验无法实现;知识点过于复杂,学生 The standard of primary science curriculum proposed that primary science curriculum is a scientific enlightenment course aimed at cultivating scientific quality. The basic idea is that “students are the main body of science learning and scientific learning must always be based on inquiry”. Therefore, the experiment of science curriculum is from the verification type to the inquiry type transition, paying attention to cultivating students’ hands-on ability and scientific thinking ability. However, in the teaching practice, there are always some realistic problems that will affect the achievement of the experimental teaching goal. For example, the experiment time is too long, the classroom limited teaching time can not be completed; the lack of experimental equipment in the school, some experiments on the textbook can not be achieved; the knowledge point is too complicated,