Practical Research On Methodology Of Symbolic-graphic Combination In High School Electromagnetism Teaching

Electromagnetics is a discipline that studies electromagnetic phenomena and is an important part of physics.High school electromagnetics is one of the key and difficult points for physics teaching in high school and is also for students' learning.It's the abstraction of electromagnetic and the demand to comprehensively use the multi-module knowledge in this part that makes the students feel the electromagnetic is difficult to learn and use.Only on the basis of mastering knowledge can students apply it.Therefore,how to help students to master the abstract and complex electromagnetic knowledge is one of the important goals for high school physics teachers.If the abstract physics knowledge can be specific showed,the difficulty for students to learn this part will be greatly reduced,which is beneficial to arouse students' interest in electromagnetics.In this way,the ability to use physical knowledge to solve physical problems and problems in life can be cultivated,so they will realize that physics exists everywhere in our daily life.Physics comes from life and also serves life.In order to solve the problem of abstraction of high school electromagnetics,the author of this research proposed to apply the teaching method of combing numbers with shapes in mathematics teaching to electromagnetics teaching.The combination of quantitative relationships with geometry means that there is some correspondence between "numbers" and "shapes",that is,abstract quantitative relationships can be transformed into intuitive geometric images,and geometric images can also be transformed into simple quantitative relationships.According to the teaching goals ofdifferent chapters,combined with the teaching method,design and implement a feasible teaching plan.By combining quantitative relationships with geometry,the abstract and difficult-to-understand physical knowledge can be transformed into concrete,visualized and simplified information.The first part of this thesis contains the research background,research significance,research methods and theoretical basis;the second part contains related concepts;The third part makes a detailed analysis of the application characteristics of the combination of quantitative relationships with geometry in elective textbooks 3-1,3-2 and the exam questions;The fourth part contains the purpose,process and conclusion analysis of the questionnaire survey;The fifth part focuses on the teaching design and teaching effect of the combination of quantitative relationships with geometry in electromagnetic teaching,as well as the students' learning perception and experience.Finally,combining the teaching practice,the author summarizes the advantages and disadvantages of applying the combination of quantitative relationships with geometry to the teaching of electromagnetics.It can be seen from the data analysis results of this paper that the combination of numbers and shapes can achieve better teaching effect when applied to electromagnetism teaching.It is hoped that this research can provide reference teaching suggestions for the diversity of teaching methods of electromagnetism.