Comparative Study On Conventional Experiments And DIS Experiments In High School Physics Demonstration Experiment Teaching

Physics is a natural science based on experiments,and physics teaching must be based on physical experiments.Demonstration experiments,as a type of physics experiment,are loved by teachers and students due to their unique intuitiveness,imagery,and fun,becoming an important means of physics teaching and playing an important role in high school physics teaching.At the same time,with the further development of science and technology,educational informatization has gradually been put on the agenda.The Ministry of Education has passed a series of documents to clarify that information technology affects the development of education,and we should use educational informatization to drive educational modernization.The implementation of the "Physics Curriculum Standards for Ordinary High Schools(2017 Edition,2020Revision)" further requires the establishment of digital laboratories or the introduction of digital experimental systems for teacher demonstrations in schools,and guides teachers to study the teaching methods of digital experimental systems to promote the modernization of teaching methods.Based on this,the "DIS" experimental system has gradually entered the classroom of high school physics experimental teaching.But for this digital resource,due to differences in regional development and educational concepts,different teachers have different understandings of it,which leads to some confusion when conducting experimental teaching.This article will conduct a comparative study of conventional experiments and DIS experiments in high school physics demonstration experiment teaching.To clarify the characteristics of conventional experiments and DIS experiments,and provide reference and guidance for frontline teachers to reasonably choose the two experimental methods.Based on the theories of teaching optimization,Meaningful learning and audio-visual education,the research carried out the following work:Firstly,the concepts of "conventional experiment" and "DIS experiment" were defined through literature research,and the research status of conventional experimental teaching and DIS experimental teaching at home and abroad was summarized.Secondly,on the basis of existing research by scholars,and further combining with the basic requirements of demonstration experiment application,a comparative framework between conventional experiments and DIS experiments in this article is constructed from four dimensions: experimental equipment,experimental phenomena,experimental implementation and operation,and cultivating students’ abilities.On the basis of this framework,select some demonstration experiments in Electromagnetism,complete the experiments in the laboratory using two different experimental methods,namely conventional and DIS,record the experimental process,compare and analyze the conventional experiment and DIS experiments,clarify their respective characteristitics,and summarize the basis for the selection of the two experiments.Finally,the teaching design was carried out with Faraday Electromagnetic Induction and Self-induction Phenomenon as the teaching themes,and they were applied to two ordinary classes in the second grade of a senior high school in Dingxi City,Gansu Province during the teaching practice stage.Through questionnaires and interviews,the teaching effects under the two experimental methods were investigated.The research results indicate that students hold a positive attitude towards DIS entering the classroom;DIS experiments can effectively promote students’ learning;The use of DIS experimental teaching can effectively enhance students’ interest in learning and promote the effectiveness of physics learning.Therefore,it is meaningful and feasible to apply DIS in teaching high school physics demonstration experiments.Teachers should actively develop DIS experiments on the basis of regular experiments.Both conventional experiments and DIS experiments have their own advantages.In actual demonstration experiment teaching,teachers should follow the selection principles,combine the characteristics of conventional experiments and DIS experiments,and complement each other to achieve the best experimental teaching effect.