| The concept of physics is the foundation and the first element of the core literacy,not only reflects students ’understanding of physics,but also is the key to students’ knowledge from physics to application.This article makes an in-depth analysis of the connotation of physical concepts,teaching value,and development status of students’ physical concepts.Evaluation criteria by designing physical concepts.Questionnaire survey and data analysis on the physical conception level of senior students.In-depth study of the main reasons restricting the cultivation of students’ physical conception level,and further propose a unit teaching strategy to promote the development of physical concepts,thereby strengthening the training effect of physical concepts in actual teaching.The research contents of this article are as follows:1.By studying the relevant domestic literature,the connotation of physical concepts has been clarified,at the same time,this article combines related research to divide the level of physical concepts into five levels:[1]Physical situation observation;[2]Preliminary analysis and explanation of the physical situation;[3]Preliminary application of physical knowledge to explain physical situations;[4]Preliminary comprehensive application of physical knowledge to solve physical problems;[5]Skillfully apply physics knowledge to creatively solve problems.At the same time,the ability performance reflected by physical concepts is divided into three dimensions:the ability to learn and understand,the ability to apply practice,and the ability to transfer innovation;It is further subdivided into nine abilities such as observing memory,summarizing argumentation,and associating integration.Because physical concepts are a comprehensive manifestation of physical abilities,the ability performance is the influencing factor of the formation and development of physical concepts,the two are inside and outside,the evaluation of physical level can be achieved by analyzing the performance of physical capabilities.2.In order to deeply study the current status of students’ physical concepts,based on the performance of the above-mentioned physical concepts,this paper designed a questionnaire for the sophomore students’ physical concepts,at the same time,the Rasch statistical model was used to quantitatively analyze the results of the questionnaire.It was found that half of the students in the key class had a level of physical concepts above[4],while the students in the middle class concentrated in the level of physical concepts[3].Through further analysis of the student’s ability performance,it was concluded that the lack of students’ ability to integrate and integrate and the ability to transfer and innovate resulted in a failure to improve the level of physical concepts,when it comes to solving physical problems,it shows scattered physical knowledge and lacks a systematic knowledge structure.3.Based on the results of the survey data,this article clarifies that the direction of improving the level of physical concepts is mainly to cultivate students’ ability to integrate and integrate,to promote the systematicization of physical knowledge,and thus to promote the level of physical concepts.Based on this,a unit teaching strategy based on physical concepts is proposed:Taking "Basic Physics Knowledge-Physical Core Concepts-Physical Concepts" as the way to cultivate physical concepts,Guided by the unit concept based on physical concepts,the overall unit planning is carried out in parallel with driving tasks and problems,highlighting the knowledge structure,cultivating the ability of students to integrate and integrate knowledge,promoting the systematic structure of students’ physical knowledge,and helping students improve Conceptual level.4.Based on the above unit instructional design strategies,this article conducts a unit instructional design and a case study on the implementation of each section of the chapter"Electrostatic Field",to investigate whether it can promote the formation of physical concepts. |
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