立足思维培养基于“问题导向”理念的实验教学新尝试——以测量钢丝杨氏模量实验为例NEW ATTEMPT OF “PROBLEM-ORIENTED” EXPERIMENTAL TEACHING BASED ON THINKING CULTIVATION: A CASE STUDY OF MEASURING YOUNG'S MODULUS OF STEEL WIRE
王才林,邵明珍,张欢,刘丽莎
摘要(Abstract):
本文以测量钢丝的杨氏模量为例,在"问题导向"理念的指导下,基于"如何准确测量钢丝在特定拉力下的伸长量"这个问题,首次在同一上课时间段内,分别采用光杠杆法和光栅尺法测量同一根钢丝的杨氏模量,结果表明两种方法测量结果高度一致,误差仅为0.6%。学生在同一上课时间段内通过两种不同方法的对比,不仅能加深对问题的理解,强化问题导向,同时也有利于开阔解决问题的思路,达到培养拔尖创新人才思维模式的目的。
关键词(KeyWords): 杨氏模量;光杠杆法;光栅尺法;问题导向;拔尖创新人才
基金项目(Foundation): 南方科技大学2019年教学改革项目(XJJG201911; XJJG201915);; 教育部高等学校大学物理课程教学指导委员会高等学校教学研究项目(DJZW201931zn)
作者(Author): 王才林,邵明珍,张欢,刘丽莎
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