Practical Research On Using Micro-experiments To Help Junior High School Physics Teaching

In the era of complex information,in order to obtain information more conveniently and efficiently to achieve the goal of use," micro " in social software has become a prominent concept.Morever,in the process of promoting the modernization of education,the Ministry of Education further condenses the three-dimensional goal into the physical core literacy,and at the same time proposed that education should better a dapt to the new needs of the future society.The physics course should give full play to the function of experimental teaching,attach importance to the connection between physics knowledge and students’ life experience,and promote students’ flexible application of physics knowledge.However,due to equipment limitations and some teachers’ insufficient attention to experiments,experimental teaching is not ideal.In contrast,micro-experiments are close to life and have the characteristics of novelty,strangeness and doubt.Therefore,this study aims to integrate micro-experiments into junior high school physics classrooms,use micro-experiments to alleviate some problems in junior high school physics teaching,and explore micro-experiments have advantages in improving classroom effects,cultivating students’ interest,and understanding physics and life.The specific work of this study is as follows :This paper adopts a variety of research methods,including literature research method,experimental method,questionnaire method and classroom observation method.First of all,through in-depth study of the literature,understand the relevant research status of micro-experiments at home and abroad,and establish the theoretical basis of this study.Then,the characteristics and teaching functions of micro-experiments are discussed,and the interesting experiments that teachers use common items in daily life to design and create,with relatively low scale and operation difficulty but still have obvious and intuitive physical phenomena are defined as " micro-experiments ".Then,a teacher questionnaire was designed and distributed to investigate the current situation of physics experiment teaching and the understanding of microexperiments in four schools,and to analyze the feasibility of micro-experiments in junior high school physics classroom.Then,by sorting out and classifying the collected materials,we think about how to give physical knowledge to them and form physical micro-experiments.On this basis,examples of microexperiment design are given from the three teaching functions of microexperiment to help create situations,help explore experiments,and help consolidate and expand knowledge.The operation of micro-experiment is introduced,and its advantages in teaching and the unique advantages in cultivating students’ core literacy are analyzed.Subsequently,the " pressure " section was selected for practical teaching,and micro-experiments were integrated into different teaching links in the experimental class.Finally,the teaching effect of micro-experiment was tested by issuing pre-test and post-test physics learning attitude questionnaires,comparing post-test scores and observing students’ classroom performance.After teaching practice,the following conclusions can be drawn :(1)In the case of the same pre-test level,the post-test scores of the experimental class were significantly higher than those of the control class,indicating that the integration of micro-experiments was conducive to promoting students ’ understanding of knowledge,forming physical concepts,and improving students ’ performance.(2)Through classroom observation,it is found that the students in the experimental class are more active in micro-experiment teaching and the learning atmosphere is relaxed.It shows that using micro-experiment to help junior high school physics classroom is conducive to stimulating learning interest,cultivating scientific thinking,increasing classroom vitality and improving classroom efficiency.(3)Through the comparison of the average scores of the pre-test and posttest questionnaires,students like the teaching method of micro-experiment,and are more willing to learn knowledge in this way,indicating that the application of micro-experiment in junior high school physics classroom is feasible.In general,in the new era of rapid development,the application of microexperiments is conducive to stimulating interest,improving the classroom and promoting the development of students’ core literacy.