Design And Practice Of Micro-Course Case Using NB Chemical Virtual Simulation Software

The application of NOBOOK chemistry virtual simulation experiment(hereinafter referred to as NB chemical experiment)in teaching and assisting the development of chemical experiment course is the concrete way to implement the national policy and the requirements of the new curriculum standards.The new curriculum standards attaches importance to the integration of various information technology and chemistry courses,records the NB chemistry experiment as a micro-course and applies it to pre-class preview and after-class review,and assists the chemistry experiment teaching,which is helpful to solve the problems existing in the chemistry experiment teaching.It is beneficial to enrich the experimental teaching means,stimulate the learning interest of students and realize the modernization of education.Therefore,it is imperative to combine micro-class with virtual simulation experiment to assist chemistry experiment teaching.The research of this paper is divided into six parts.The first part is the prolegomenon.The existing problems in chemistry experiment teaching were determined by distributing questionnaires to teachers and students,and then the existing problems were classified.This part expounded the significance of the research,explained the function of the virtual simulation experiment micro-course and the problems that can be solved,as well as the research methods involved in the research process of this paper.The second part is theoretical research.This part analyzed the research status of micro class and virtual simulation at home and abroad,found out the breakthrough of continuing research in this paper,and through consulting the literature,determined the core concept of the research,"virtual simulation experiment" "micro class" and "NB chemistry virtual simulation software".At the same time,the related theories,such as cognitive load theory,piecewise learning and micro-learning theory,were also analyzed,which play an important guiding role in the research of this paper.The third part is the design and analysis of NB chemistry virtual simulation experiment.This part focused on the design principles of micro-class cases in this paper,determined five types of virtual simulation experiment micro-class cases according to the existing problems,the analysis of experiments in people's education textbooks and the interviews of key teachers,and determined the design idea of micro class and the presentation form of micro class at the same time.The fourth part is the design of micro-class case.This part designed a case to each kind of virtual simulation experiment micro-class,and there were the function and way of auxiliary teaching,the design idea of micro-class,the design of learning task sheet,the design of micro-practice and the design of presentation content in each case.The fifth part is the practice of the case.This part introduced the processes and the results of the practice of the cases of "exploring the main components of chlorine water" and "Review of gas preparation experiment",which were selected for practice in the first and third grades of Yinchuan XX Middle School.By qualitative and quantitative researching,we found that the results were in good agreement with expectations.The sixth part is the conclusions and prospects of the research.This part summarized the value and results of this research from four aspects,and reflected the deficiency of the research from the practical object,test question,and so forth,and then prospected the further research of it.Through this study,five kinds of NB virtual simulation experiment micro-classes have been designed,and satisfactory results have been obtained in practice,which have been recognized by students and teachers,and which will provide practical application methods for middle school chemistry teachers,provide a new idea and method for the study and teaching of chemistry experiment in senior high school.However,the virtual experiment can never replace the real experiment,the use of the virtual experiment is in order to carry out the real experiment better.