医学教育管理 ›› 2019, Vol. 5 ›› Issue (1): 79-83.doi: 10.3969/j.issn.2096-045X.2019.01.018

• 实验教学 • 上一篇    下一篇

结合化学实验开展第二课堂的实践与探索

赵 光1, 李 珺1, 朱明玥2, 彭钰婷1, 张佳宁1, 张 妍1   

  1. 1. 首都医科大学药学院,北京 100069;2. 首都医科大学基础医学院,北京 100069
  • 收稿日期:2018-11-07 出版日期:2019-02-20
  • 通讯作者: 李珺
  • 基金资助:
    1. 北京市教委教学专项(PXM2016_014226_000041);2. 首都医科大学本科生科研创新项目(XSKY2017052);3. 首都医科大学第二课堂项目(7NZDS2016108,D2KT2017042);4. 首都医科大学长学制专业基础阶段导师项目(drkt2016035);5. 首都医科大学教学模式与方法推进项目(2018JYJX012)

Practice and exploration of the second classroom based on chemistry experiments

Zhao Guang1, Li Jun1, Zhu Mingyue2, Peng Yuting1, Zhang Jianing1, Zhang Yan1   

  1. 1. School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China; 2. School of Basic Medical Sciences, Capital Medical University, Beijing 100069 China
  • Received:2018-11-07 Online:2019-02-20
  • Contact: Li Jun

摘要: 传统的化学实验教学需要改革,通过开展第二课堂活动,可以作为第一课堂的延续,提高学生的主动性和积极性。以手工皂的制作为课题,结合生产生活实践的热点,引入环保健康的理念。通过加入天然提取的油料制作手工皂,比较加料比、热制法、冷制法、制皂时间等因素的影响,用最大气泡法测定手工皂水溶液表面张力。用共沉淀法制备Fe3O4 纳米粒子,考察摩尔比,pH 等因素的影响。通过实验制作出成品,激发了学生的兴趣,培养了学生的科研思路和创新能力。

Abstract: The traditional chemistry experiment teaching methods need to be reformed. The activities in the second classroom as the continuation of the first classroom, can be used to improve students’ initiative and enthusiasm. The subject of soap handmaking can combine with the hot issues in production and life practice, with the consideration of environmental protection and health benefits. The handmade soaps were made by adding natural plant oil. The influence of material liquid ratio, hot-process soapmaking, cold process method, soap making time and so on is compared. The surface tension of the solution of handmade soap was determined by maximum bubble method. Producing Fe3O4 nanoparticles is another subject.Fe3O4 nanoparticles were prepared by co-precipitation method. The effects of molar ratio and pH are investigated. When the final products are finished, the students’ interest is stimulated. The second classroom can cultivate the students’ scientific thinking and innovation ability.