The optional experiments were carried out in Peking University physiology experiment course for seven semesters in four years.The teaching methods have been improved and the scope of teaching was extended by the way that students decide their own experiment contents.Students were better trained to ask scientific questions,design experimental protocols,and analyze test results in self-designed experiments.Students' interest in learning was enhanced because experiments using commonly used methods of research deepened the connection with scientific research.Thereby the optional experiment improved the quality of teaching.After more than 20 classes of teaching,this flexible curriculum got a better respondence.At the same time through the teaching practice and student feedback,the course group is also constantly to find and solve new problems,to further promote the curriculum reform,and gets better teaching effect.These are beneficial explorations for the traditional experimental course under new conditions.%北京大学生理学实验课程组在教学中开展了选做实验的尝试,经过4年共7个学期的实践,摸索了一套比较完善的实施选做实验的方案.通过在经典实验中自选内容,扩展了教学的全面性;自设计实验则锻炼了学生提出科学问题、设计实验方案、分析实验结果的能力,提供了更加深入的训练;与科研方法相关的实验强化了与科学研究的联系,提高了学习兴趣;选做实验在总体上提高了教学质量.超过20个班级的教学中,这种灵活的课程设置方式获得了比较好的反响.同时通过教学实践和学生反馈,课程组也在不断发现并解决问题,进一步推进课程改革,获得更好的教学效果.这些都是对新条件下的传统实验教学的有益探索.
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