Research On The Effective Application Of Exercise Microlesson In Chemistry Teaching In Senior High School

We are in an new age of information explosion.With the continuous popularization and development of the network and the popularization of smart phones,laptop and tablet computers,we have the conditions to learn anytime and anywhere.And the application of modern information technology in the field of education is becoming diverse.For example,in Khan College abroad,flip classes are also widely spread in various colleges and universities.In China,because of the unique characteristics of micro-lesson,such as simplicity,accuracy,pertinence,it has the way of combining video and text,and the network breaking through the space constraints and providing students with more convenient learning opportunities,it has also been applied to teaching by educators.Combing with the current application status of chemistry micro-course,the tight schedule of senior three students who are unable to explain all exercises,and ignoring students' personality differences in the process of lecture,this paper provide the effective application research of exercises micro-course in senior high school chemistry teaching,and practiced it for half a year.The first part is document overview and definition of the related concepts.It studies the basic theory and present situation of micro-course at home and abroad with the theme of "micro-course" and "chemical exercises micro-course",and sorts out the research problems and contents of the article.Then,on this basis,the questionnaire "Chemistry Exercise Teaching in Senior High School","Cognition andUse of Micro-class" and "Feasibility Investigation of Replacing Some Exercise Explanations with Exercise Micro-class" were used to investigate the senior three teachers and students in two classes of Longgang Affiliated Middle School of Huazhong Normal University in Longgang District,Shenzhen,and the practical operability of micro-class teaching was obtained.According to the local students' learning,we designed and produced the micro-lesson teaching cases which are in line with students' reality.We designed the micro-lesson from three aspects: comment on weekend homework exercises,conceptual exercises,and breakthrough difficult exercises.We are scheduled to watch the micro-lesson by ourselves in the spare time of the weekend,and upload the micro-lesson for individual students to record the wrong questions by themselves,which will be carried out in a unified inspection on Monday.As an effective auxiliary way of exercise teaching,it is used to help answer students' questions in autonomous learning after class,make up for the deficiency of classroom teaching,and guarantee students' individualized learning.Then,taking Class 5 and Class 13 of Science Class 3 of Senior High School as experimental objects,the application experiment lasted for half a year.In the whole process,students' autonomous learning was emphasized,focusing on analyzing problem-solving ideas and summarizing methods,taking systematic integration of resources as the expression form,and making up for differences as the promotion means.Finally,an application case of the exercise micro-lesson with "electrode equation in electrochemistry" as a breakthrough point is given.After the teaching practice,the author interviewed the students in the experimental group by sampling,and compared and analyzed the scores of the students in the experimental group and the control group in multiple dimensions based on the test scores of one semester.It was found that the students who practiced micro-lessons had improved their learning status and study habits,and their academic achievements were improved,especially for medium grade students.Therefore,the micro-lesson of exercises can obviously promote chemistry teaching in senior high schools,and at the same time improve teachers' professional development to a certain extent,so as to achieve the goal of teaching while learning.It is in line with the quality education concept of "facing all students and promoting students' all-round development",and it is also conducive to teaching students in accordance with their aptitude,which has certain operability,but the effect is not obvious for part of thestudents.Due to the limitation of my research level,the small base of the research object(only two classes),the problems of students' self-control and cooperation,inadequate supervision of teachers,inadequacy parents support and shortcomings in micro-course design,the research results of this paper are insufficient and have certain limitations.I hope that this research can be practiced more,my research on this topic in future work can be deepen,improving the existing shortcomings and getting a future development.