Application Of Micro Class In The Teaching Of Chemical Reaction Principle In Senior High School

At this stage,with the rapid development and popularization of information technology,mobile terminal equipment also develops and popularizes rapidly.People’s life is gradually informationized.Obtaining and applying information on the network has become an indispensable part of people’s daily life.In recent years,with the rapid development of micro blog,wechat and other media,people have more ways to obtain and exchange information,and the time to obtain information is increasingly intermittent and fragmented.In this paper,combined with the characteristics and design principles of micro class,based on the knowledge content of the People’s Education Edition elective 4 " chemical reaction principle" as an example,combining theory with practice,the design and application of high school chemistry micro course are studied,hoping to play a certain reference value.In this study,a questionnaire was designed for teachers and students to investigate the application status of micro-lessons in the chemical reaction principle.The survey results showed that micro-lessons were not widely used in current teaching applications,but most of the teachers and students who often use micro-lessons think that the teaching effect of micro-lessons is good.However,there is still a lack of resources for micro-lessons.Judging from the current development,schools should encourage excellent teachers to make micro-lessons to promote the sharing of resources and exchange of experience.Based on the analysis of the content of " chemical reaction principle" and the analysis of the students’ learning situation in the elective 4 of the People’s Education Edition of high school,the students are recorded on the screen or video.The author designed and made four micro courses as case studies--"the proton number line method of conservation fast writing ","law of conservation of fast writing fuel cell electrode equations","the influence of the concentration of chemical equilibrium ","the university entrance exam to be bestowed favor on newly-pressure equilibrium constant(Kp)to calculate” and the chemical reaction principle of chapters of typical problem on course.In practice,the implementation mode of micro-class teaching was explored,and the teaching mode of"micro-class + We Chat" was mainly adopted,and the implementation of micro-course was pushed by the We Chat public account.According to the survey,the vast majority of students like the micro-class teaching method.After the micro-class learning,students’ attention,learning initiative,interest and performance have been improved,which meets the requirements of students’ independent and personalized learning.The series of high-quality micro lessons in the module "Principle of Chemical Reaction"made by ourselves in this paper enrich the micro course resources of chemistry in high school.At the same time,the author has explored the application mode of using the We Chat public account to push the micro-course implementation.The students’ learning effect is obvious,and the peer teachers’ recognition and guidance have also been obtained,which has strengthened the communication and exchanges between teachers from different schools.