The Comparative Study Of Three Versions Of Compulsory Course 2 In High School Chemistry Selectivity Is Based On The Literacy Of "Evidential Reasoning And Model Cognition"

With the deepening of new teaching ideas,chemistry core literacy has become a hot topic.Teaching material is a bridge to cultivate students’ core accomplishment of chemistry.To improve students’ core accomplishment of chemistry,it is necessary to solve how to combine teaching material and core accomplishment of chemistry reasonably.This paper takes the accomplishment of "evidence reasoning and Model Cognition" as an example,mainly adopts content analysis method and comparative analysis method,and selects three chapters related to the compulsory course 2 of High school Chemistry of New Renjiao,New Luke education and New Sujiao as research objects.The three version of high school chemistry teaching material "evidence reasoning and model recognition" literacy knowledge content,functional section,under the content level of literacy and academic quality level corresponding situation analysis comparison,three versions according to the new curriculum standard and teaching material content,reasonably divide the analysis section,and analysis steps were determined.The results show that there are differences in the selection of knowledge contents,functional columns,literacy level and academic quality of the three editions of the textbooks.The contents of the new Sujiao edition are more extensive,with more knowledge content in the "thinking and discussion" function column,and more attention is paid to the cultivation of students’ independent thinking ability.However,the textbooks of the new Sujiao and New Luke Edition emphasize knowledge itself in terms of knowledge content,and students have few requirements for the practical application of knowledge.The function columns in the new edition are traditional.Compared with the new Edition,the content of the new Edition is novel,which enables students to review the knowledge and is conducive to cultivating students’ application ability.In terms of functional column design,the textbook of new Sujiao Edition is more complete than that of new Sujiao edition and New Luke Edition.New Sujiao Edition pays more attention to learners’ application ability of knowledge content.In the knowledge content presented in the three editions of textbooks,the literacy level of "evidence reasoning and model cognition" and the academic quality level are relatively less.The new edition pays more attention to the cultivation of students’ basic knowledge.Accomplishment level 2 and academic quality level 2 and accomplishment level 3 and academic quality level 3 are relatively uniform.Accomplishment level 4 and academic quality level 4 are relatively more presented in the New Sujiao edition.The knowledge content compiled by the new Sujiao edition has a great influence on the actual life of students,which can help students solve some practical problems by using the knowledge they have learned.It is closely related to life and pays attention to the comprehensive cultivation of students.Through the analysis and comparison of the knowledge content,functional columns,literacy level and academic quality level under the accomplishment of "evidence reasoning and model cognition" in the three editions of textbooks,two suggestions are put forward to provide reference for the teaching of front-line teachers and the compilation of textbooks of each edition in the future.