分析化学实验多元化教学模式改革与实践

doi:10.3866/PKU.DXHX202103082

Abstract

Abstract:

Innovation of experimental teaching mode is an important way to solve the current predicament of experimental teaching for science and engineering in universities. The difficulties in the teaching of analytical chemistry experiments were summarized in this paper. A new experimental teaching method was established relying on the basic, design and researching experiments as teaching contents, the micro-video as online preview before class, the discussion-based course of flipped classroom in class, and the combination of software for processing experimental results. This diversified teaching mode can effectively improve students' initiative and creativity. In addition, taking the basic and researching experiments as the examples, the application of the diversified teaching mode was performed, which will provide research basis for the reform of science and engineering experiment teaching.

Key words: Analytical chemistry experiment, Diversified teaching mode, Teaching reform, Teaching practice

Hai Wu, Tiantian Huang, Qiao Zeng, Huazi Wang, Xiaoyan Jin, Jie Liu, Suhua Fan. Reformation and Practice of Diversified Teaching Mode in Analytical Chemistry Experiment[J].University Chemistry, 2021, 36(9): 2103082.

考查内容	考核标准	计算依据
在线观看微课视频	10%	所有实验观看的时长比例的平均值
预习报告及思考题	10%	所有实验的正确率和认真态度分值的平均值
课堂测试	20%	雨课堂平台统计的所有实验测试题的平均值
课堂讨论	10%	知识抢答、课堂发言、小组发言、问卷调查
实验操作	10%	平时实验操作指导+期末实验操作考核
实验报告	20%	实验结果准确度、认真态度、软件使用情况等
科研型实验及报告	20%	实验意义、文献调研、实验方法、结果合理性、报告书写质量

测试目标	测试题	备选项
思政内容	不属于水硬度测定意义的是( )	A. 有利于控制饮用水硬度使其适合于人类健康；B. 有利于保障输送水管线及锅炉安全；C. 有利于消除水中金属离子使其变成软水饮用
了解	水的硬度是由( )引起的？	A. 金属离子；B. Fe³⁺；C. Ca²⁺；D. Ca²⁺和Mg²⁺
理解	测定时，在pH为10时，下列排序正确的是( )	A. K_CaY > K_MgY > K_MgIn > K_CaIn；B. K_MgY > K_CaY > K_MgIn > K_CaIn； C. K_CaY > K_MgY > K_CaIn > K_MgIn；D. K_MgY > K_CaY > K_CaIn > K_MgIn
掌握	实验加入三乙醇胺的目的( )	A. 控制酸度；B. 掩蔽Cu²⁺；C. 掩蔽Fe³⁺和Al³⁺防止其封闭指示剂；D. 掩蔽Fe³⁺和Al³⁺防止使结果偏大
思考挖掘	测水硬度时，用何种基准物质标定EDTA标准溶液？	A. 锌粒；B. CaCO₃；C. ZnO；D. CuO
分析应用	如何准确取自来水的水样？	概述
能力创新	影响该实验测定准确度有哪些因素？如何控制？	概述

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Reformation and Practice of Diversified Teaching Mode in Analytical Chemistry Experiment

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