分析化学设计型实验考核方法的探索与实践

doi:10.3866/PKU.DXHX202006061

Abstract

Abstract:

A scientific and impartial evaluation method was made according to the characteristics of designing experiments, which examine the students' ability of experimental design ability, experimental operation ability, and ability to analyze and solve problems. The designed experimental assessment can inspire the students' experimental enthusiasm and go-aheadism, enhance their ability to apply knowledge comprehensively to innovate practice and promote their innovative consciousness and practice skills.

Key words: Analytical chemistry experiments, Designing experiment, Evaluation method, Laboratory teaching reform

Jiao Li, Gu Jin, Lingling Li, Qizhi Yao, Hongyu Liu, Xiaokui Wang. Exploration and Practice of the Evaluation Methods for Designing Analytical Chemistry Experiment[J].University Chemistry, 2021, 36(7): 2006061.

Figures/Tables 5

References 8

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实施过程	细节概述
1) 选题	学生每人完成一个设计实验内容(指定样品或自主样品)，了解试剂和仪器设备的选择范围(危化品慎选，寻找安全可替代药品；仪器选用已有设备)
2) 设计	学生运用所学过的理论知识，查阅相关资料文献，提出设计实验方案及可行性分析，完成初稿
3) 审核	初审：学生和助教修改方案复审：全体教师及助教复审实验方案，完成初始修改意见修稿：学生依据修改意见，完成初始修改在符合科学的前提下，支持学生采用不同方法进行实验，对具有鲜明的个性和独到之处的设计方案予以鼓励
4) 实验准备	根据学生的实验方案，主讲教师和助教再次筛选试剂和设备，如不符合要求，寻找替代品
5) 答辩+预实验	每组学生代表以PPT形式在班级内陈述实验方案并就实验方案进行答辩，答辩过程要求所有学生参与。讨论结束，进行预做实验，进一步完善实验方案
6) 实验	学生根据自己的实验方案进行实验，教师作为指导，实验结束后两周提交方案及报告
7) 成绩	教师批改学生的实验报告，给出综合成绩
8) 总结交流	组织学生进行考核性设计实验后的经验总结和心得交流

能力考核	评分项目	评价标准	赋分
设计实验能力/25分	选题	创新性、安全性	10
	设计	合理性、可行性	15
实验操作能力/30分	实验操作	规范性、熟练性	15
	发现解决问题	观察仔细、思路清晰	10
	团队协作	分工合作意识	5
分析问题能力/35分	数据准确计算	准确性	3
	分析总结讨论	客观性、全面性、逻辑性、严谨性	20
	报告论文写作	规范性、科学性、严谨性	10
	感想及建议	客观性	2
其他/10分	答辩	重点突出、逻辑性、语言流畅	8
	纪律和卫生	迟到早退、衣着规范、台面清洁、试剂及物品归位等	2

评分项目	教师评分	助教评分	学生评分
选题	√(100%)
设计	√(100%)
实验操作		√(60%)	√(40%) 同学互评
发现解决问题		√(60%)	√(40%) 自我评价
团队协作			√(100%) 同学互评
数据准确计算		√(100%)
分析总结讨论	√(100%)
报告论文写作	√(100%)
感想及建议	√(60%)		√(40%) 自我评价
答辩		√(60%)	√(40%) 同学互评
纪律和卫生		√(100%)

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Exploration and Practice of the Evaluation Methods for Designing Analytical Chemistry Experiment

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