虚拟仿真技术在化学教学论实验教学中的应用

doi:10.3866/PKU.DXHX202109095

Abstract

Abstract:

This paper tries to apply virtual simulation experiment in chemistry teaching theory laboratory course of normal university students, and discusses the influence of virtual simulation experiment on enhancing self-efficacy of normal university students and improving their professional experimental skills by adopting the mixed teaching mode of "online + offline". It proves that the value concept, learning motivation and self-regulation ability of normal university students have been significantly improved.

Key words: Virtual simulation experiment, Chemistry teaching theory laboratory, Laboratory self-efficacy, Laboratory professional skills

Haiqin Li, Liang Xue, Wanying Dong, Yang Yang. Application of Virtual Simulation Technology in Laboratory Teaching of Chemistry Teaching Theory[J].University Chemistry, 2022, 37(7): 2109095.

Figures/Tables 12

References 20

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实验能力一级指标	知识要点	得分
预测、观察、描述和解释实验现象的能力	(1) 安装实验装置，铁丝电极和石墨电极使用时，要先进行预处理，用沙纸打磨铁丝电极	+3分
	(2) 装上铁丝阴极和石墨阳极，连接好电源	+3分
	(3) 接通低压直流电源后，可以看到两个电极附近均有气泡产生	+3分
处理实验相关信息和结论的能力	(4) 检验产生气体Cl₂、H₂	+3分

测量顺序	班级	班级人数	均值	标准差	均值的标准差
前测	实验班对照班	50 50	42.70 43.20	7.862 7.273	1.112 1.029
后测	实验班	50	47.42	8.157	1.154

假设	前测				后测
	Levene检验		独立样本t检验		Levene检验		独立样本t检验
	F	Sig.	SD	Sig. (双侧)	F	Sig.	SD	Sig. (双侧)
假设方差齐性	0.164	0.686	1.515	0.742	1.190	0.278	1.602	0.004
假设方差非齐性			1.515	0.742			1.602	0.004

项目	项已删除的刻度均值	项已删除的刻度方差	校正的项总计相关性	项已删除的Cronbach's Alpha值
价值观念1	25.74	18.400	0.601	0.822
价值观念2	25.48	18.500	0.613	0.821
价值观念3	25.40	18.163	0.620	0.820
学习动机1	25.74	19.176	0.436	0.844
学习动机2	25.70	18.459	0.592	0.823
学习动机3	25.20	19.102	0.521	0.832
自我调节1	25.54	17.519	0.704	0.809
自我调节2	25.60	18.408	0.545	0.830

项目	平均值	标准差	偏度	峰度	Kolmogorov-Smirnov检验		Shapro-Wilk检验
项目	平均值	标准差	偏度	峰度	D	p	W	p
在实验中，能够运用批判性思维方法，从不同角度反思、分析问题	3.780	0.954	?0.418	0.010	0.193	0.000^**	0.869	0.000^**
在实验中，提高专业素质和从业能力，适应社会发展对高素质化学教师不断提高的要求	4.060	1.038	?0.922	0.212	0.257	0.000^**	0.819	0.000^**
在实验结束后，实验技能提高，不断认同化学教师工作的意义和专业性	4.040	0.989	?0.874	0.423	0.234	0.000^**	0.831	0.000^**
我单纯地喜欢化学实验	3.640	0.921	?0.186	?0.718	0.232	0.000^**	0.878	0.000^**
我总想通过不断进行化学实验来使自己的综合能力提高	3.940	0.843	?0.522	?0.145	0.268	0.000^**	0.849	0.000^**
我努力练习实验技能，目的为了以后在教师职业中更加顺利	3.300	0.735	?0.545	?0.943	0.289	0.000^**	0.774	0.000^**
在练习实验过程中发现问题时可以作出调整	3.900	0.839	?0.022	?1.114	0.218	0.000^**	0.838	0.000^**
在实验讲解、演示实验的过程中可以发现问题并作出调整	3.920	0.778	0.142	?1.315	0.221	0.000^**	0.804	0.000^**

Application of Virtual Simulation Technology in Laboratory Teaching of Chemistry Teaching Theory

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Figures/Tables 12

References 20

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假设	方差方程的Levene检验		均值方程的t检验
	F	Sig.	t	df	Sig.(双侧)	均值差值	标准误差值	95%的置信区间
	F	Sig.	t	df	Sig.(双侧)	均值差值	标准误差值	下限	上限
假设方差相等	0.388	0.535	2.35	98	0.021	?2.32	0.986	0.362	4.28
假设方差不相等			2.35	97.7	0.021	?2.32	0.986	0.362	4.28

项目	平方和	df	均方	F	显著性
组间	7.163	2	3.582	6.187	0.003
组内	85.101	147	0.579
总数	92.264	149

(I)变量	(J)变量	均值差(I–J)	标准误	显著性	95%置信区间
(I)变量	(J)变量	均值差(I–J)	标准误	显著性	下限	上限
价值观念	学习动机	0.20000	0.15217	0.191	?0.1007	0.5007
价值观念	自我调节	0.53000^*	0.15217	0.001	0.2293	0.8307
学习动机	价值观念	?0.20000	0.15217	0.191	?0.5007	0.1007
学习动机	自我调节	0.33000^*	0.15217	0.032	0.0293	0.6307
自我调节	价值观念	?0.53000^*	0.15217	0.001	?0.8307	-0.2293
自我调节	学习动机	?0.33000^*	0.15217	0.032	?0.6307	-0.0293

维度	班级	N	均值	标准差	均值的标准误
专业知识	对照班	50	8.2600	3.2186	0.4551
专业知识	实验班	50	9.5600	4.4177	0.6247

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