Construction And Application Research Of Evaluation Index System Of High School Chemistry Project-based Teaching

As a new teaching mode,project-based teaching has become a hot topic in current education research,due to its characteristics of attaching importance to the combination of theory and practice,paying attention to the development of students’ social adaptability and conforming to the educational concept advocated by the new curriculum reform.The latest research results are gradually applied in school class,but the evaluation research on projectbased teaching is few and has not been completely established yet.The central task of this study is to construct a set of evaluation index system for projectbased chemistry teaching in high school.provide front-line teachers with some reference to effectively evaluate the development level of current project-based chemistry teaching from the aspects of instructional design,classroom teaching,teaching effect,etc.The research object of this study is teaching evaluation,combines literature analysis method,interview method,Delphi method(expert consultation method),analytic hierarchy process(AHP)and other research methods to carry out the construction and application research of high school chemistry project teaching evaluation index system.The basic research process is as follows:Firstly,deeply studied the general model of project-based teaching and the existing problems in the evaluation of chemistry teaching.Through theoretical research,the "evaluation index system of project-based teaching in high school chemistry" is preliminarily designed and constructed.Secondly,the Delphi method is used to consult the experts for the first time to modify the indexes,and modified the indexes according to the experts’ opinions.Then,used the analytic hierarchy process(AHP)analysis to determine the weight of evaluation indexes.Finally,the practical application of the evaluation index system is studied.5 front-line teachers are invited to evaluate and score 3 project-style class records and teaching design(lecture video)with this evaluation index system,and the reliability and validity of the constructed evaluation index system are tested according to the scoring results.Based on the CIPP evaluation model,procedural evaluation and other relevant theories,this study constructed an "evaluation index system of project-based chemistry teaching in high school"(including 3 first-level indexes,9 second-level indexes and 29 third-level indexes).Practical application tests results showed that the evaluation index system has good reliability and validity,and can be used in quantitative evaluation of project-based chemistry teaching in high school.The innovation of this study is that,based on the existing research results,the evaluation index system is constructed according to the curriculum standard requirements,characteristics of chemistry curriculum,core literacy and other contents.Compared with the existing evaluation index system,the evaluation index system constructed in this study has more distinct characteristics,more operability and more prominent diagnostic function.