Design And Practice Of The Middle School Chemistry Virtual Experiment Teaching

With the development of times and the progress of the society, the application of virtual realitytechnology in the field of education is more and more widely, presents the development trend ofdiversification. The virtual experiment is developed based on virtual reality technology. Virtual experimentthrough the virtual experiment system to realize its function, it can be classified into four major categories,such as augmented reality virtual experiment system, immersion virtual experiment system, distributedvirtual experiment system and desktop virtual experiment system. Because of its good simulation effect,simple maneuverability and relatively low cost, in the teaching of middle school, the desktop virtualexperiment system has basically met the terms of use. Virtual chemical experiment has many advantages inthe teaching, such as macro micro world, abstract concepts specific. It can also break the limitation of timeand space, shorten the experimental period, etc. According to the characteristics and function of virtualexperiment, and in view of the high school chemistry experiment course, the design, analysis and researchof different types of virtual experimental teaching cases is carried on.1.Investigation of the current middle school’s software and hardware facilities. Analysis theapplication of basic principle, problems and feasibility of virtual experiment in middle school chemistryteaching. Investigation indicated that the96.1%of the school has the hardware and software of virtualchemistry experiments conditions, many schools have been using the virtual experiment teaching.2.Understanding of the teachers and the students know and master the situation of modern educationtechnology. Survey shows that99.6%of high school teachers can make use of some common teachingoffice software, and are accustomed to using modern technology means such as multi-media to assistteaching; Students contact computer style diversification, school curriculum also inclined to computeroperation skills,77.9%of the students already have a certain computer operation skills.3.Analyzes on the advantages of the virtual experiment teaching, the characteristics of middle schoolchemical experiment teaching as well as the combination between theoretical basis and basic methods.4.According to the middle school chemistry lesson preview lesson, new courses, recitations, exerciseslesson four types, we design a virtual experiment teaching plan, and using the comparative and exp erimental method to carry on the experiment teaching.5.Summary evaluation of the virtual experiment example in the middle school chemical experimentteaching methods, strategies, and the actual effect of application. In the preview lesson, virtual chemistryexperiments can be very good to help students complete the preparation tasks, Stimulate the interest oflearning, deepen the understanding of new knowledge; In new courses, virtual experiment can achieve themacro micro world, strengthen students’ understanding on themolecular level knowledge, at the same timesome, inconvenience to the actual operation of the experiment can also be done through virtual experiment;In recitation, virtual chemistry experiments can make the abstract chemical concrete concept, Seriessummarizes knowledge systematically, to enable students to deepen the understanding of knowledge of thereview; In exercises lesson, dynamic virtual experimental exercises can help students understand thequestions and consolidate the related knowledge points, to cultivate their thinking to solve the problem, andfurther increase the efficiency to solve the problem.