An Empirical Research On High School Experiments Of Mechanics And Sensors

The core literacy of physics announced in 2018,points out the necessary quality and key ability to adapt to the lifelong development of students.With the implementation of the new curriculum reform,how to realize the new idea and how to put it into practice is an important topic.Ordinary High School Physics Curriculum Standards(2017 Edition)proposes requirements for sensor experiments,which not only enriches the way of physics experiments in middle schools,but makes it difficult for teachers to treat traditional experiments and sensor experiments.Therefore,the author tries to combine high school mechanics experiments with sensors from the perspective of measurement,and has done following works in four aspects.(1)The author finds out the research approach and the theory by analyzing references from cnki and classify related Dissertations.From the three-dimensional goal to the core literacy,the change of educational concept makes the understanding of core literacy urgent.The literature review method is used to analyze the core literacy,and the relationship between core literacy and three-dimensional goal is clarified.(2)The traditional experiment and the digital experiment are consistent in the experimental principle,but different in the measurement principle,which is the key to this research.Studying measurement tools,analyzing the working principle of the spring dynamometer,the dot timer,the force sensor,the Displacement sensor and the photoelectric gate sensor,and figuring out their weaknesses and strengths and applicability.Traditional experiment and the Dis experiment are regarded as a whole rather than two different sets of experimental instruments.(3)The author has carried out statistics on the national volume physics experiment questions and independent experimental propositions from a lots of provinces and cities in the past ten years.I have compared the recent two versions of the textbooksof textbooks to look for cases combining sensors and traditional experiments which turns out that the combination of sensors and traditional experiments has become a trend of the college entrance examination experiment.(4)From the perspective of the measurement tool,the author tries to design several different cases,by which analyzes the reasons for the combination in the case,and proposes possible results after the combination.Finally,the practice has been carried out in both the teacher and the student,which has produced certain positive effects.