A Empirical Study On Developpinng The High School Students’ Key Cometencies Of Chemistry By Digital Experiments

The core literacy of high school chemistry is the concentrated expression of the value of the education of chemistry,which makes students form correct values,essential characters and key abilities through chemical learning,which is mainly composed of five"accomplishments".DIS digital experiment system is a new teaching tool.It is based on computer and integrates education and information technology.Some of the advantages of DIS digital experiment system just make up some shortcomings in the experiment of high school chemistry textbooks,but there is no obvious influence on the core literacy of high school chemistry.This study focuses on the definition of the core literacy of high school chemistry,research and compile the measurement tools based on the core literacy of high school chemistry,and put it into practice to detect the impact of DIS digital experimental system on the core literacy of high school chemistry.Through the research and analysis of the core literacy,the core literacy of chemistry and the existing core literacy and the evaluation tools of the core literacy of chemistry,this paper is based on the "high school chemistry curriculum standard(2017 Edition)" as a basis for making a set of measuring tools for the core literacy of high school chemistry.The five key elements of the core literacy of chemistry are five dimensions to evaluate students’ core literacy of chemistry,and the total questionnaire is 34.After the completion of the first draft of the questionnaire,a class student of another four star high school in the same area was selected,and SPSS 19.0 was used to test the reliability and validity of the questionnaire.The overall reliability coefficient of the questionnaire was 0.907 and the KMO value was 0.892.The questionnaire was finally determined in the case of good results.In the course of the study,two parallel classes of four star high schools in Jiangsu province were selected to carry out the teaching of chemical elective 4 in high school.The traditional teaching experiment and DIS digital experiment were carried out respectively.Then the differences in the core literacy of the Chemistry subjects of the two classes were measured by measuring tools,and the conclusion was drawn:the DIS digital experiment system It has significant positive significance for improving the core quality of chemistry in elective 4 teaching process.The evaluation system for core literacy of high school chemistry is a complex project,and no specific evaluation system has yet been formed.Although a questionnaire on the core literacy of chemistry is presented,and the overall reliability and validity is good,the reliability coefficient of the two dimensions is less than 0.8,indicating that the questions in these two dimensions can be further improved to improve the reliability of the questionnaire.In addition,this study is only for a high school chemical elective 4 modules,and does not expand in time and space to do a greater expansion,so the measurement tools in this study may have some shortcomings.However,some ideas and ideas for the future high school chemistry evaluation system and the high school chemistry experiment teaching should be put forward by the research on the research of high school chemistry core literacy measurement tools and the influence of DIS digital system on students’ core literacy.