结合的教学实践,通过对学生在大学物理设计性实验中的实验行为进行研究,剖析了实验时较为普遍存在的问题,如实验前对选题的研究方向不明确,对实验的预期没有进行猜想或理论分析,设计上过多的依赖文献;实验时缺乏深入的探索,遇到问题轻易放弃;实验后对数据与现象的关系认识不清,对实验的有效性和精确度没有进行评估等。针对这些问题,提出一些具体的改进措施,笔者认为在设计性实验教学中必须注重基础性实验与设计性实验间的衔接,强调科学探究,强调全面科学的评价指标,渗透元认知的教学策略。
As an important teaching step in college physics experiment, design-oriented experiments play an irreplaceable role in cultivating students' comprehensive quality and innovative ability. The universal problem in students' design-oriented experiments was analyzed by the study of students' experiment behavior, and some countermeasures for these problems were proposed.