The Application Of DIS Experiment And Its Influence Factors In High School Physics Teaching

In the past ten years since the new curriculum reform,digital information system(DIS)experiments have gradually entered the teaching materials and teaching of physics,and DIS experimental equipment has also been promoted nationwide.It impacts the traditional teaching and learning model with the advantages of rapid and accurate data analysis and specific image display.However,many front-line teachers say that DIS experiment is not so magical,and it also has some shortcomings,such as not being specific enough about the essence of the experiment.Therefore,the introduction of DIS experiment is not to completely replace the traditional experiment,but to complement each other and promote the advantages while avoiding the disadvantages.As a new thing,DIS experiment has attracted more and more attention from teachers and researchers.The main purpose of this study is to understand the compilation characteristics of DIS experiments in different versions of high school physics textbooks,as well as the application of DIS experiments in practical teaching and the factors affecting their use.Study 1: A comparative study on the contents and presentation forms of DIS experiments in textbooks.Firstly,the high school physics textbooks of Shanghai science and technology press(Shanghai edition),people's education press(Human education edition)and Guangdong education press(Guangdong edition)were selected as the research objects,and the DIS experiments involved in the textbooks were statistically analyzed.Then using the method of comparison,the DIS experimental contents and presentation forms in the textbooks are compared and analyzed,so as to find the compilation characteristics of DIS experimental contents in different versions of textbooks.The conclusions are as follows:(1)The teaching materials with the largest number of DIS experiments are those with Shanghai edition,followed by those with human education edition and those with Guangdong edition.There is only one DIS experiment jointly compiled in the textbook,that is,measuring the speed of an object with the help of a sensor,indicating that this experiment has beenattached importance to by different versions of the textbook.According to the classification of DIS experiment types according to experimental teaching purposes,it is found that the exploratory DIS experiment is the most in the textbooks of Shanghai edition and Guangdong edition,accounting for 52% and 54.5% respectively,and the exploratory DIS experiment is the least in the textbooks of people's education edition,accounting for only 16.7%.However,the human education version of the teaching materials has the most measured DIS experiments,and the other two versions of the teaching materials have the least verified DIS experiments.According to the teaching organization form,will every textbook DIS experimental types,respectively,compared with traditional experiment,found that Shanghai versions DIS will experiment and demonstration experiment respectively 52.6% and 51.7% of the total number of the class,schools are teaching material DIS will do experiment and demonstration experiment respectively 8.7% and 3.9% of the total number of the class,the Guangdong version of experiment and demonstration experiment teaching material DIS will do respectively 8.6% and 4.0% of the total number of the class.It shows that the human education edition is similar to the Guangdong education edition,and the DIS experiments mostly appear in other kinds of experiments.(2)The textbooks all focus on presenting DIS experimental contents in a diversified form,with pictures and texts,and each has its own characteristics.By contrast,the Shanghai version of the teaching materials has more diversified picture types.The human version and the Guangdong version of the teaching materials do not provide experimental data tables for students,but mostly show the experimental results.In terms of column setting,the DIS experimental columns of Shanghai edition and Guangdong edition textbooks are set in a variety,while the human edition textbooks are relatively single.In terms of length,the Shanghai version of the textbook DIS experiment occupies a large space,the Guangdong version of the textbook on the preparation of DIS experiment is detailed and slightly,the people's version of the textbook on the preparation of DIS experiment is relatively brief,indicating that the Shanghai version of the high school physics textbooks on the DIS experiment of a higher degree of attention.(3)Through an in-depth analysis of the "seven elements of inquiry" in the DIS experiment,it is found that the Shanghai version and the Guangdong version pay more attention to the preparation of DIS experiment from seven or part of the elements of inquiry,while the human education version mostly USES the key links of the seven elements to prepare DIS experiment.Study 2: Investigation on the application of DIS experiment in high school physicsteaching.The investigation includes the teachers' understanding and recognition of DIS experiment,the development of DIS experiment,teaching process,implementation effect and teaching evaluation.Through questionnaire survey and interview,the following conclusions are drawn:(1)High school physics teachers do not have enough knowledge of DIS experiment,including the meaning of DIS experiment and the components of DIS experiment.Most teachers think DIS experiment and traditional experiment can complement each other.More than half of the physics teachers liked and approved the DIS experiment in teaching.(2)The application of DIS experiment in high school physics teaching is not good,with low frequency and single evaluation method.In the actual teaching,there are still a large number of teachers choose the traditional experiment.The two experiments "using sensors to explore the relationship between force and reaction force" and "using sensors to measure speed by computer" were the most frequently done,while the DIS experiments in the rest of the textbooks were rarely done.Most teachers choose 2-3 students to cooperate to complete the DIS experiment.Study 3: The influence factors of DIS experiment in high school physics teaching.The survey was conducted mainly from four aspects: teacher factor,school factor,student factor and other factors.Finally,the questionnaire questions are assigned,and the correlation analysis is made between the influencing factors in each dimension and the application situation by using SPSS software.It is concluded that the influencing factors for high school physics teachers to use DIS experiment in teaching are as follows:(1)Teacher factors include teachers' awareness of DIS experiment,degree of concern,teaching motivation to improve students' experimental ability,personal ability and teachers' educational concept,all of which are significantly correlated with the use of DIS experiment.The influence of teacher's personal ability on DIS experiment in teaching is the biggest compared with other teacher factors.(2)School factors include school's support for DIS experiment.Other factors are mainly the influence of college entrance examination.The number of students in the class and the degree of interest of students under the student factor did not affect the use of DIS experiment in teaching.Finally,in order to effectively apply DIS experiment in high school physics teaching,the following suggestions are proposed based on the above conclusions: Increasing the input of hardware facilities;Organize teachers to conduct training and set up DIS experimental communication platform;We will focus on developing an evaluation system.