Comparative Analysis Of Exercises In High School Chemistry Textbooks Based On Core Literacy

The new round of reform of basic education in China is marked by the official release of the new curriculum standard in 2017.Combining with the current situation of chemistry education in China,the new curriculum standard puts forward the core accomplishment of chemistry subject.The core quality of chemistry is not only the guiding direction of teaching but also the important basis of stage evaluation.As an important part of the textbook,the textbook exercises are one of the important carriers of authoritative diagnosis and development of students’ discipline quality at the beginning of the use of the new textbook.Based on the curriculum standards of the 2017 edition of the new textbook,this study mainly focuses on the comparison of the exercise design of the textbook,which mainly includes three aspects: the first is the shallow comparison of the two versions of the textbook in three aspects: exercise type,exercise number and exercise situation.Second,according to the academic quality levels 1 and 2 in the curriculum standards and the core literacy levels 1-4 involved,the textbook exercises of "Theme 2 Common Inorganic substances and their applications" were coded,and the types and distribution levels of core literacy were compared and compared in the textbook exercises.Firstly,the text analysis method is used to code the textbook exercises according to the description of academic quality level,the type of core literacy and the level of core literacy.Third,through the literature research to determine chooses the SEC consistency evaluation model to evaluate the teaching material problem sets and the consistency of the curriculum standard,and combining the core literacy level 4 level to improve the SEC evaluation model,to determine the content of the theme and the core literacy level 1 ～ 4 consistency analysis of two dimensional framework,according to the teaching material to fill in the problem sets of coding in two-dimensional framework form,Then the data analysis and processing are carried out to get the consistency coefficient between the textbook exercise examination after class and the distribution of core literacy level.After the research and analysis,the following conclusions are drawn: first,in the number of exercises,the teaching textbook of the people’s edition is more than that of the Soviet edition;In terms of the exercise situation,the exercises in the textbook of the people’s teaching version pay more attention to the investigation of the real situation of the exercise,and the proportion of exercises with real problem situation is higher than that in the textbook of the Soviet teaching version.Su teaching edition exercises more than the proportion of literacy examination is slightly higher than the teaching edition.Second,in terms of academic quality standards,most of the exercises in the two editions of textbooks meet the requirements of academic quality level one,and the proportion of exercises in the textbooks that can meet the requirements of level two is less than 10%,and this proportion is slightly lower than that of the Soviet teaching edition.In terms of the type distribution of chemical core literacy types,the core literacy infiltrated by the textbook exercises of the People’s Education edition is,literacy A > literacy E > literacy B > literacy D.In the Suzhou Education Edition,the ranking is literacy A > literacy B >literacy E > literacy C > literacy D.Two versions are A notice to examine literacy "identification of macro and micro analysis and literacy" E "evidence reasoning and model recognition," more also examines the evidence reasoning and model recognition,and accomplishment B D "the ideas of changes and balance" and literacy science inquiry and innovation consciousness penetration is less,and this textbook exercises also difficulty levels are relatively low.In terms of the distribution of the depth level of chemical core literacy,there is a slightly different distribution trend between the Suzhou edition and the human edition.The exercises of the Suzhou edition pay attention to the examination of level one,while the exercises of the human edition are more up to level two,but the after-class exercises of the two editions focus on level one and level two,and the exercises of level three and level four are rarely involved.On the whole analysis,the Ren-teaching version is higher than the Su teaching version in the level of exercise depth.Based on the four levels of core literacy distribution in curriculum standards,combined with the SEC consistency evaluation model,the three studies proposed a new exercise evaluation model,and conducted exercise diagnosis and evaluation with the help of SEC content theme and two-dimensional frame table of each core literacy level.The exercises of the two editions of textbooks and the development level of the core literacy of curriculum standards have reached a high degree of consistency.Finally,some practical suggestions in teaching are put forward according to the conclusion of the compilation and analysis of the exercises in the two editions of teaching materials.