融合现代信息技术的化学实验成绩评定体系

doi:10.3866/PKU.DXHX202003040

Abstract

Abstract:

A scientific laboratory marking method is important in arousing students' enthusiasm in laboratory study, thus, the quality of laboratory teaching of universities is improved. In order to meet the needs of laboratory teaching in the new era, it is necessary to establish a marking system which is deeply integrated with modern information technology. Therefore, a novel marking system was constructed, in which modules of pre-lab test, experimental operation, data quality, calculation, report and literature were included. Each module was marked by grade and the detailed indexes have been laid out. In addition, the software of Excel and MATLAB were used to realize data auto-correction and auto calculation for the final marks.

Key words: Chemical experiment, Marking, Auto-correction, Grade, Module

Wenjing Song, Chang Liu. A Marking Scheme of Chemical Laboratory Based on Modern Information Technologies[J].University Chemistry, 2021, 36(2): 2003040.

Figures/Tables 6

等级	评级	指标
等级	评级	操作	数据	计算	报告	文献
A++	非常优秀	所做都正确且非常高效，具备深厚的理论基础，课前准备充分，知道要做什么	所有数据和谱图都很完美，所有峰形、峰位、峰强度正确，分辨率高	正确率100%	完成所有且全部正确，能够参考相关文献并形成自己的观点	正确引用文献，并提炼总结原文观点、结论；无网站上的资料
A+	优秀	所做都很好、很有效率，清楚在做什么，思考之后再动手	所有数据和谱图接近完美，大部分峰形、峰位、峰强度正确，分辨率高	正确率95%	完成所有且正确，只有一个不够完美，能够参考相关文献并形成自己的观点	正确引用文献，并提炼总结原文观点、结论；引用一个网站上的资料
A	很好	基本上做得很好、很有效率，清楚在做什么	所有数据看起来很好，谱图的峰形、峰位和峰强度基本正确	正确率90%	完成所有且很好，能够参考相关文献	正确引用文献，但单纯抄袭原文观点、结论；引用一个网站上的资料
B	好	大部分都做得很好，很有效率	整体数据看起来一致，并遵循正确的趋势，只有一个或两个异常值；谱图稍有不佳	正确率85%	完成所有，但内容不全面	引用文献，但部分引用格式不正确；引用一个网站上的资料
C	良	还可以做得更好、更快，或者实验中需要很多帮助	大部分数据看起来正确，但有两个以上的异常值；谱图分辨率低	正确率80%	完成一半以上且全部正确，或完成所有但部分内容错误或很差	引用文献，但部分引用格式不正确；引用超过一个网站上的资料
D	差	不努力，不清楚要做什么，实验花费较长时间	数据中存在大量的异常值，但大部分依然可用；谱图信号强度低、噪音大	正确率70%	完成一半以上但部分内容较差，或完成不到一半且正确，或完成所有但大部分内容错误	引用文献，但部分引用格式不正确；引用网站上的资料数超过3个
E	非常差	没有完成实验，得到大部分实验结果	数据中存在大量的异常值，数据有用，但不可靠；谱图错误	正确率60%	完成不到一半，部分内容较差	未引用文献，只引用网站上的资料，引用格式正确
F	不及格	没有完成实验，获得少量实验结果	数据或谱图非常糟糕；数据可用，但会得到错误的结论	正确率50%	完成不到一半，大部分错误或很差	未引用文献，只引用网站上的资料，但引用格式不正确
F-	不及格	没有完成实验，基本没有实验结果	数据或谱图非常糟糕，且不可用	正确率40%	只完成一个且错误	未引用文献，只引用网站上的资料，但不相关
U	不及格	没做实验	没有数据	正确率低于40%	未完成	没有任何引用

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A Marking Scheme of Chemical Laboratory Based on Modern Information Technologies

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等级	分值
A++	100
A+	95
A	90
B	85
C	80
D	70
E	60
F	50
F-	40
U	0