Case Study Of Digital Sensor Experiment Teaching In High School Physics

Physics Curriculum Standard for Senior High School(2017)puts forward the basic concepts of"pay attention to the times of the curriculum,pay attention to the needs of scientific and technological progress and social development" and "guide students to learn independently,promote the diversification of teaching methods".As a typical new technology,digital sensor technology is introduced into physics classroom.This study selects digital sensor experiment as the research object,locates the best time to carry out digital sensor experiment,gives full play to the unique advantages of digital information system,and realizes the integration of sensor and high school physics teaching.Guided by the Learning Progressions theory,the path of a class is designed,and the inquiry activities are arranged according to the basic process of experimental inquiry teaching and the use principle of digital information system.The difficulty of each experiment in the operation and cognitive level is gradually increasing,forming a reasonable gradient to promote the achievement of the goals of all levels,and improving the students’ ability of scientific inquiry,hope to provide some reference for teachers using digital information system teaching.This paper uses the methods of literature research,investigation and case study.The first and second chapters summarize the research background and domestic and foreign research situation of digital sensor experimental teaching through literature research method,determine the content of the study,define the relevant concepts,and discuss the supporting role of this research based on cognitive learning theory,constructivist learning theory and audio-visual education theory.The third chapter explains the necessity and feasibility of the research through the student questionnaire,which shows that this research has certain practical significance and value.The fourth chapter is the positioning analysis of digital sensor experiment by using literature research method and interview survey method,which is divided into two stages:"building the basic process of experimental inquiry teaching" and"positioning digital sensor experiment".This chapter analyzes the periodical papers of physics teaching in middle school guided by Learning Progressions theory,summarizes the links of teachers’ teaching and the development of students’ cognition,and the corresponding experimental exploration stages.Then,interviews with the first-line middle school physics teachers,improves the process according to their years of teaching experience,and summarizes the principles of using digital information system;From the analysis of the conclusions of authoritative journals,the answers of teachers interviewed and the experimental exploration and processing of typical cases,the best period of digital sensor experiment is located,and the sensor teaching activities are standardized.The fifth chapter uses the case study method to sort out the physical experiments that can be completed by using the digital information system in senior high school.Based on the above chapter,three teaching designs of"Newton’s third law","energy conversion in circuit" and "magnetic induction and magnetic flux" are compiled.By analyzing the starting point,preset goals and nodes,the path of a class is planned,and the experimental exploration activities are reasonably arranged;Observe the teaching of "Newton’s third law" to get teaching feedback,and take "force sensor to explore the relationship between force and reaction force" as an example,put forward suggestions to improve the experimental teaching of digital sensor.