基础实验与专题研究实验的互动教学设计及应用--以液氮比汽化热测量实验为例  

Interactive Teaching Design and Application of Basic Experiment and Special Research Experiment——Taking the Measurement Experiment of Liquid Nitrogen Ratio Heat of Vaporization as an Example

作　　者：王瑗 潘葳 黄学东 余建波[2] WANG Yuan;PAN Wei;HUANG Xuedong;YU Jianbo(Physics Teaching and Research Center,School of Physics and Astronomy,National Demonstration Center for Experimental Physics Education,Shanghai Jiao Tong University,Shanghai 200240,China;Teaching Division,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学物理与天文学院物理教学研究中心,物理国家级实验教学示范中心,上海200240 [2]上海交通大学教务处,上海200240

出　　处：《实验室研究与探索》2021年第11期150-154,163,共6页Research and Exploration In Laboratory

基　　金：上海交通大学2020年决策咨询课题(实验技术专项)《面向研究型教学的液氮比汽化热实验教学系统设计》(JCZXSJB2020-21)。

摘　　要：物理实验中心是国家级实验教学示范中心,配合学校在本科教学中培养多学科交叉的复合型、创新型人才为教育目标,在实验课教学中积极研究、探索、引进多种先进的教学理念和教学方法。以"测量液氮比汽化热"这个有代表性的低温测量实验的教学过程为例,改进教学方法、拓展教学内容,以培养学生发现问题、解决问题、自主创新和动手能力,引导学生在进行基础实验的过程中主动观察、分析,找出对实验结果影响比较大的一些关键问题作为专题,指导学生继续研究、改进,从而真正地学到知识。并以液氮测量桶的内壁涂膜材料为专题研究对象,鼓励研制新装置,寻找合适的液氮测量桶,既激发了学生的学习热情,又取得了良好教学效果。As a national teaching demonstration center,Physics Experiment Center of Shanghai Jiao Tong University,actively studies,explores,and introduces a variety of advanced teaching philosophy and teaching methods after considering the school’s educational goal of cultivating multidisciplinary and innovative talents in undergraduate teaching.Here,we take the teaching process of“Measuring the Specific Heat of Vaporization of Liquid Nitrogen”as an example,to demonstrate the improvement of teaching methods and content,aiming at the guidance of students to find problems,solve problems,and finally realizing the cultivation of independent innovation and practical skills.In details,in the process of conducting basic experiments,students are encouraged to observe and analyze,and to find out key issues that have a greater impact on the experimental results.As special topics,students continue research and improvement,and truly learn knowledge.In this article,the coating material of the inner wall of the liquid nitrogen measurement barrel are designed as the subject of special research,students are encouraged to develop new devices and find a suitable liquid nitrogen measurement barrel,which not only stimulates the students’enthusiasm for learning,but also achieves good teaching results.

关 键 词：液氮 比汽化热 数据采集 专题研究 

分 类 号：O514.2[理学—低温物理] G642.423[理学—物理]