Research On The Improvement And Practice Of Physics And Optical Experiment Teaching AIDS In Junior Middle School

Physics is a subject based on experiments.Since the new curriculum reform,the importance of experiments in physics teaching has been more prominent and emphasized.To give play to the important role of experiments in physics teaching,it is necessary to correctly understand the teaching goals of physics experiments,pay attention to grasp the characteristics of experimental teaching,and reasonably develop curriculum resources for experimental teaching.Actively studying experimental teaching and improving and innovating experimental teaching aids are an important way to expand the resources of experimental teaching courses and an important means to improve the effectiveness of experimental teaching.But the author learned through questionnaire survey that many physics teachers did not pay enough attention to the improvement of experimental teaching aids.The experimental teaching has the phenomenon of "doing by speaking and doing,and demonstrating by generation".Experiments that meet the teaching conditions in the laboratory will be done,but when encountering experimental difficulties,multimedia video or animation courseware will be used instead.It will rarely actively delve into experimental teaching,and rarely improve and develop experimental teaching aids to achieve teaching goals and teaching.effect.Based on the above issues,this article takes the human education version of compulsory education textbooks as the carrier,the compulsory education physics curriculum standards as the background,and the purpose of improving the effectiveness of physics teaching,through literature research,questionnaires,interviews and other methods to analyze,based on experimental improvement Case study of the improvement of physics and optics experimental teaching aids in junior high school.This article is mainly carried out from the following five aspects:(1)Tracing the research history of the improvement of physics teaching aids in middle schools through domestic and foreign literature research,and collating representative research results.And analyze the advantages and gaps of existing research,and find breakthroughs in this research.(2)The optical-related experiments appearing in the Eighth Grade Book of Compulsory Education Textbook Physics of People's Education Press are classified into four categories: student experiments,demonstration experiments,classroom experiments,and after-school experiments.Combined with the physics curriculum standards for compulsory education,the characteristics and requirements of each type of experiment,as well as the distribution in the textbooks were analyzed and summarized.(3)Through the questionnaires and teacher interviews,the Physics and Optics Experimental Class in Caidian District of Wuhan City The implementation status of teaching,in-depth understanding of the problems encountered by front-line teachers in optical experiments,and concluded that there are insufficient laboratory experimental equipment in optical experiments,corresponding experimental equipment is not available for some experiments,the experimental phenomenon is not obvious,and the experimental teaching effect is not achieved Objective issues such as expectations.I also learned that front-line teachers have a high degree of recognition for the improvement of optical experimental teaching aids in thinking,but they rarely practice experimental improvement.(4)Based on the above research,taking the problems in optical experiments as the starting point,according to the experimental improvement General principles,according to the four categories of student experiments,demonstration experiments,in-class experiments,and after-school experiments,the practical research on the improvement of optical experimental teaching aids.Specific analysis of the advantages and disadvantages of "straight-line propagation of light","the effect of lenses on light","investigating the law of convex lens imaging",and "investigating the law of reflection of light",and making reasonable improvements to form optical experiments Case study of teaching aids improvement(5)Select "Exploring the law of convex lens imaging",an improved teaching aid to form a teaching case,and apply it to classroom teaching.Through the comparison between the control group and the experimental group,test data is collected,and the effect of the improvement of experimental teaching aids on effectiveness teaching is analyzed based on the test results and student interviews.Studies have shown that the improvement of optical experimental teaching aids has a good role in promoting effective teaching,which can improve students 'academic performance and learning interest,improve students' thinking ability,help students understand teaching difficulties,improve learning efficiency,and improve classroom teaching.effectiveness.