| Since the new curriculum reform,more emphasis has been placed on the cultivation of students’ core competencies and the improvement of students’ comprehensive quality.With the rapid development of information technology,traditional PPT teaching students are easy to feel sleepy and lose interest and enthusiasm for learning,and the emergence of micro-courses at this time has reversed this situation well.The use of micro-courses in the research and practice of various disciplines is becoming more and more widespread,but there is still a lot of research space for the teaching practice of high school chemistry.This study aims to use micro-lessons to assist teaching and practice teaching in the2019 Chemistry "Compulsory One" of the People’s Education Edition,in order to explore the positive role of improving teaching efficiency,improving students’ interest and enthusiasm in learning chemistry,and cultivating students’ all-round development.To this end,the main contents of this research include the following aspects:(1)Search for materials through the Internet,read a large number of literature,learn the relevant theories of microcourses,and analyze and summarize the research status of microcourses at home and abroad,so as to lay a theoretical foundation for the subsequent use of microcourses in chemistry teaching in high school;(2)In this study,the four parallel classes taught in this semester were divided into experimental classes and control classes,and before practice,questionnaire surveys and interviews were used to understand teachers’ understanding and use of micro-courses,and the current situation of students’ learning chemistry and their ideas on micro-courses were investigated.Then use the data obtained from the pre-test to select appropriate content for micro-course teaching design and record or produce relevant micro-lessons to carry out the practice of micro-lesson assisted teaching;(3)Analyze and evaluate the teaching effect and problems that need to be improved after micro-courses assist teaching by analyzing and comparing the enrollment of experimental and control classes,as well as the results of the four tests in the later stage,questionnaire surveys,and ordinary classroom performance to observe the situation of individual students.The results show that the use of micro-courses to assist teaching can improve students’ enthusiasm and initiative in learning chemistry,which is conducive to the cultivation of core literacy in chemistry and the all-round development of students.At the same time,it also has a greater effect in improving teaching efficiency,micro-lessons can effectively alleviate the boring and boring classroom,and can also help students learn independently in time after class,check and fill in the gaps,which is conducive to cultivating students’ enthusiasm and initiative in learning.At the same time,there are also certain problems,the research object is too single,the research time is only one semester,etc.,and it is necessary to continue to practice and improve in subsequent practice.This study provides a good reference for the author’s subsequent practice and research on the use of micro-courses to assist teaching. |