Construction Of The Target Index System For The Unit Teaching Of Chemical Elements And Their Compounds In High School

With the continuous deepening of curriculum reform,the proposal of core literacy in disciplines has brought new challenges to traditional classroom teaching methods.In order to achieve the educational goal of "Li De Shu Ren" and implement the core literacy of chemistry disciplines,unit teaching has gradually replaced fragmented class time teaching as the main teaching method.Unit teaching is to emphasize the comprehensive quality development of learners and the integration of basic knowledge.Unit teaching goals are the key to unit teaching design,so designing a reasonable unit teaching goal is the most important task for front-line teachers in the design unit teaching.Knowledge of elements and their compounds is fundamental in high school chemistry and plays an important role in mobilizing students’ interest.Therefore,this paper constructs the index system of teaching objectives of high school chemical elements and their compound units.In this study,the teaching objectives of elements and their compound units were taken as the research objects,and the teaching objective index system of high school chemical elements and their compound units was constructed by comprehensively using the literature method,interview method,fuzzy Delphi method,questionnaire method,and analytic hierarchy method.The index system includes 3 first-level indicators,7 second-level indicators,and 24 third-level indicators,and determines the weight of the teaching target index system of high school chemical elements and their compound units.The specifics of this study are as follows:The introduction part of the first chapter elaborates the research background and research significance of this topic,clarifies the unit teaching,unit teaching objectives,and the current research status of high school chemical elements and their compound unit teaching,and puts forward research questions.The second chapter defines the concept of unit teaching,unit teaching objectives,and index system,and expounds the relevant theoretical basis for the construction of the teaching goal index system of high school chemical elements and their compound units.The third chapter gives the entire research idea and research method.The fourth chapter constructs the teaching target index system of high school chemical elements and their compound units.First of all,using the literature research method,according to the rooted theory,combing the literature on "element and compound teaching","unit teaching objectives" and "unit teaching index system",in-depth analysis and coding of relevant literature data,extracting indicators at all levels,and initially forming a high school chemical element and compound unit teaching target index system;secondly,through the interview method,the front-line teachers of high school chemistry are interviewed with the teaching objectives of elements and their compound units as the theme.The content of the interview text is encoded and extracted according to the rooted theory,and the initial construction of the index system is improved;finally,the fuzzy Delphi method is used to collect the opinions of experts and analyze them,and the indicators are improved to further form a scientific indicator system.The fifth chapter is based on the established high school chemical elements and their compound unit teaching target index system,using the analytic hierarchy method,the front-line teachers will compare and assign values to the indicators,count the weights of each index and conduct consistency tests,and finally form a complete high school chemical element and its compound unit teaching target index system.The sixth chapter is a summary and prospect,which concludes that the teaching target index system of high school chemical elements and their compound units is constructed and the weights of the indicators at all levels are determined,while the shortcomings of some studies are explained.