Comparative Study On The Alignment Between Chemistry Textbook Exercises And Curriculum Standards In High School

Under the background of education reform,the need for systematic evaluation of the quality of curriculum reform and the degree of alignment between various educational elements promotes the development of alignment research tools,and many alignment analysis models such as Webb model,SEC model and Achieve model have emerged,which provide a basis for worldwide research on the alignment of curriculum standards.Since the curriculum reform based on curriculum standards has been carried out in China,a number of policy documents have been issued,which clearly define the upper-level guiding role of curriculum standards in all teaching links,such as textbook compilation.In the field of chemistry,the implementation of "General High School Chemistry Curriculum Standard(experiment)" and "General High School Chemistry Curriculum Standard(2017 edition,2020 revision)"(hereinafter referred to as "New Curriculum Standard")has laid a foundation for exerting the guiding role of curriculum standards.In view of the fact that textbook exercises,as an important part of textbooks,play an extremely important role for students to consolidate what they have learned and evaluate their learning effect in time,and their alignment with curriculum standards is related to the effectiveness of curriculum reform,it is very necessary to localize the foreign alignment analysis model and study the alignment between the textbook exercises and the new curriculum standard.This can not only promote the development of localized alignment research under the background of the new curriculum standard,but also help to improve curriculum standards,enhance its operability and guidance,promote the compilation of textbook exercises based on curriculum standards,improve teachers'awareness of curriculum standards in teaching,give full play to the role of intermediate bridge of exercises,and make teaching practice return to the implementation of curriculum standards.First of all,on the basis of combing and summarizing the existing achievements in the field of alignment research at home and abroad,this study chooses the exercises of three new version chemistry compulsory textbooks compiled according to the new curriculum standard and the new curriculum standard as the research object,and takes Webb model as the research tool to make a comparative study from the four dimensions of knowledge type,depth,breadth and the distribution balance.At the same time,this study formulates research ideas and methods,and defines the core concepts and internal theoretical basis,so as to make the research boundaries and direction clear.Secondly,in view of the fact that compared with the previous curriculum standards,the new curriculum standard has clearly defined the academic requirements of each subject and formulated academic quality standards,Webb model can be localized accordingly.The coding analysis framework can be constructed by refining academic requirements,and the four levels of academic quality standards can be used as the basis for determining the depth of knowledge.In this way,the exercises of three new version chemistry compulsory textbooks are coded.Then the coded data are counted,and visualized in the form of graphs and tables.Thirdly,on this basis,the data are compared and analyzed.On the one hand,the alignment level between exercises and the new curriculum standard is judged by comparing the alignment index value of the three versions of textbooks and the new curriculum standard in four dimensions with the standard value of acceptable alignment level for Webb model.On the other hand,the alignment index values of different versions and different topics in each dimension are compared to further analyze the alignment differences between the exercises and the new curriculum standards of the three versions of chemistry textbooks and the alignment differences between topics.Finally,based on the analysis of the research results,in view of the problems existing in the alignment between textbook exercises and the new curriculum standard,this paper puts forward corresponding suggestions from the aspects of exercises compilation,curriculum standards and teachers' teaching,at the same time,summarize the research conclusions,reflect on the whole process and content of this study,and put forward the research prospect.The study found that,except in the dimension of the balance of knowledge distribution,the exercises of Shandong Science and Technology Publishing House and Jiangsu Phoenix Education Publishing House are less consistent with the new curriculum standard on some topics,but in the dimensions of type,depth and breadth of knowledge,the alignment between the exercises of the three versions of textbooks and the new curriculum standard has reached the acceptable level.Among them,the setting of textbook exercises published by the people's Education Publishing House is more in line with the requirements of the new curriculum standard,and performs well in four dimensions and five themes.In contrast,the alignment in some topics of the other two versions of textbook exercises with the new curriculum standard has room for improvement,but it is not much different from the textbook exercises published by the people's Education Publishing.This can also basically show that the new curriculum standard has played a strong guiding role in exercises compilation in the three new versions of high school chemistry textbooks,which ensures the alignment in the type of knowledge,depth of knowledge,breadth of knowledge and the balance of knowledge distribution.