The Core Concept Of Electrochemistry And Its Advanced Study

The research on advanced learning,core concept and advanced learning based on core concept is a hot topic in the field of education at home and abroad.Core concept refers to a scientific concept,principle or method which can integrate other concepts and occupy the center of the discipline,which contains the basic concepts and characteristics of the discipline and is the main part of the discipline structure.The advanced learning description is the development of students' ability to understand and apply a core concept or scientific practice for a period of time.The idea of advanced learning is that learning is not a matter of day and night,but a process of gradual,progressive and in-depth.At present,the research on advanced learning in China is mainly carried out around the core concepts.The combination of core concepts and learning advancement can solve the problems of "wide but not deep" and inconsistent knowledge concepts taught by teachers.Teaching with the core concept of "less and more refined" can help students to clarify the relationship between many small concepts in chemistry,and promote students to learn knowledge The integration and deep understanding can systematically and completely establish the structure of chemical knowledge,improve the students' cognitive level,and provide a basis for the preparation of chemical teaching materials and teaching evaluation.Therefore,the author thinks that the localization of the advanced learning based on core concepts can not only enrich the research results of basic chemistry education in China,but also provide new ideas and methods for cultivating students' core discipline literacy,promote the consistency of curriculum standards,courses and evaluation in China,and promote the reform of basic Chemical Education in China.This paper is divided into five chapters to study the advanced learning of the core concept of electrochemistry,and the specific contents are as follows:The first chapter is a brief introduction and analysis of the background and significance of the research on the advanced learning and core concepts by means of literature analysis,and the main ideas and methods of this paper.The second chapter is the literature review of core concepts and learning advancement.Through the analysis of domestic and foreign literature,the author analyzes the concept and connotation of core concept,definition and teaching of core concept,and also analyzes the concept and connotation of advanced leaming,the elements of composition,the current research status at home and abroad,the connotation of solo classification theory and the current research status at home and abroad,so as to determine the research ideas of this paper.The third chapter is to construct a learning advanced framework based on the core concept of electrochemistry.According to the analysis of 2017 edition curriculum standard,China college entrance examination evaluation system,chemical textbooks and existing literature,the core concepts of "electrochemistry" are determined as follows:the principle of original battery and the principle of electrolytic cell,and based on the theory of solo classification and evaluation,the understanding level of "electrochemistry" is divided into four levels,and the advanced hypothesis of "electrochemical" learning is constructed.The fourth chapter is the empirical study of the advanced learning of electrochemistry.The author uses the test paper written by ourselves to test the level of electrochemical learning of students in grade 1,grade 2 and grade 3 to verify the hypothesis of advanced learning.The author randomly selected two parallel classes in grade 1 grade 2 and grade 3 of Guangyuan experimental middle school to test the advanced level of electrochemical learning.The data were analyzed by winsteps3.74.0 software for reliability and differentiation.According to the analysis results,the paper can fit the Rasch model well.Then,according to the project difficulty value of each project,the learning progress is revised Order hypothesis.The fifth chapter is the research conclusion.The conclusions of this study are as follows:1.The advanced hypothesis of electrochemical learning is reasonable;2.The reliability and differentiation of electrochemical test paper are good,and the test paper is scientific;3.The level of electrochemical learning level of the same grade students is different,which is basically distributed normally,that is,the number of students whose learning level is at the single point structure level is different The majority of students are at the level of multi-point structure and relevance,and few students are at the level of further abstraction;4.The level of electrochemical learning of different grade students is in different stages.The first students are basically at the advanced level 1,most of the senior two students are in the advanced level 2,the few are in the advanced level 1 and the advanced level 3,while the third level is in the advanced level 3 as a whole,but some of the students are still at the advanced level 2.Finally,the research inspiration and teaching suggestions,as well as the shortcomings and prospects of the research,are drawn from the research results,hoping to provide some reference for other learners.