| Under the background of educational informatization,virtual reality technology has been greatly developed,meanwhile virtual simulation experiment has emerged as the times require.It has become an effective means of experimental teaching and widely used in experimental teaching.As a new experimental teaching method,in the process of continuous research and development,all aspects have made varying degrees of progress and improvement.In this thesis,documentary research,interview,case analysis,questionnaire survey and quasi-experimental research method are used as the main research methods.Under the guidance of flow theory,embodied cognition theory,constructivism learning theory and other relevant theories and the design principles of virtual simulation experiment,two dangerous important experiments in compulsory 1 of senior high school chemistry of People’s Education Press are selected,Taking the laboratory preparation of chlorine(reaction between manganese dioxide and concentrated hydrochloric acid)and the reaction between copper and concentrated sulfuric acid as development cases,a VR based virtual simulation experiment with strong interactivity and immersion is developed by using tools such as unity3 d,3ds max,visual studio 2017 and steam VR.Next,it mainly discusses the implementation of the research work and the research results from the following three aspects.Firstly,Basic theoretical research.Sort out the relevant literature of virtual simulation experiment at home and abroad,analyze the current research status and research results of chemical virtual simulation experiment,establish the research objectives,analyze the necessity according to the discipline characteristics and needs,and study the relevant education and teaching theories,so as to provide ideas for the design and development of follow-up virtual simulation experiment.Secondly,Design and development.According to the characteristics of learners,needs analysis of students and teachers,design principles and relevant theories,the case of virtual simulation experiment is designed,including overall framework design,function design of each part,interaction design,UI design,etc.after the design is completed,the virtual simulation experiment is developed,including model construction,scene construction,function realization,etc.Finally,Teaching application and effect analysis.After the virtual simulation experiment is developed,it will be tried in a small scale,continuously tested,optimized,iterated and modified,and put into use grade one class in high school,conduct teaching empirical research,collect questionnaire data,analyze the satisfaction and acceptance of students and teachers,test the teaching implementation effect,and further improve the resources.In this study,the virtual simulation experiment is utilized in dangerous chemistry experiment teaching.Students can operate the experiment under the condition of ensuring safety and obtain an immersive experience.Through the analysis of experimental data and interview results,it can be found that students and teachers have high satisfaction and acceptance of virtual simulation experiment.Virtual simulation experiment can stimulate students’ learning interest,promote students’ comprehending and grasp of the experimental content,exercise their practical ability,and improve the teaching effect. |
