Study On The Expansion Of Content About "Material Structure And The Periodic Law Of The Elements" In The New Textbooks Of PEP

Teaching materials research is an important prerequisite for teachers to carry out effective teaching.Good teaching cannot be separated from teachers’ in-depth analysis and research of the text of teaching materials.With the promulgation of the 2017 edition of the Common High School Chemistry Curriculum Standards,the new textbooks emerge as The Times require.The 2019 edition of PEP High School Chemistry Textbook(hereinafter referred to as the new edition)will be officially put into use in 2020.Compared with the 2007 edition of high school chemistry textbooks(hereinafter referred to as the old edition),what are the changes in the arrangement order,content and frame structure of the new edition?What connotation is hidden behind the change of new textbooks?When using the new version of teaching materials,which old edition of teaching materials can be used for reference?In particular,what improvement measures should be taken to adapt to the teaching of new teaching materials?These are all worth exploring.The part of "material structure and periodic law of elements" is the key and difficult point of high school chemistry teaching,which is of great help to the follow-up study.This study chose the fourth chapter "Material Structure and Periodic Law of Elements" as the research object,and carried out an extended study.Focusing on the research object,this paper adopts the method of comparison to make a comparative analysis of the new and the old textbooks,and makes a research on the connection between high school and college chemistry textbooks.The main purpose of the research is to understand the changing trend of the new edition of textbooks and realize the implementation of the new edition of textbooks for the new curriculum standards.This paper puts forward some suggestions for the teaching and learning of high school chemistry.In view of the conclusion in the research part of the textbook,this paper tries to solve the problem by compiling the chemistry reader.Referred to the existing research on the compilation of reading materials,combined with some viewpoints of the textbook research,the guiding theory for the compilation of this chemistry reading materials is formed.After the selection of knowledge points,material screening,text reader to determine,determine the form of content and finalize the review of a series of operating procedures,the final success of the preparation of the chemical reader.In order to determine whether the prepared readers achieve the purpose of writing,this paper also investigates the use of the readers.The result of the survey shows that the readership basically conforms to the purpose of the compilation.Through the research in this paper,the following conclusions can be drawn as a whole:(1)There have been some changes in the compilation basis,content,columns,charts and other aspects of the new version of the textbook,which are in line with the requirements for the cultivation of core literacy.(2)There is a connection problem between high school and college chemistry,but certain measures can ease the problem.(3)In the process of writing and using chemistry books,it is found that books can be supplementary materials for teachers and students outside class.In terms of the connection between high school and university,the knowledge supplement of books can effectively ease the knowledge gap between the two stages.