In recent years,information technology has developed rapidly in the field of education.With the popularization of wireless network and the continuous upgrading of electronic products,micro-class is favored by front-line teachers and students for its short,concise,flexible location and rich and interesting features.It has rapidly become a new teaching resource that can be applied in practical teaching.Although there are more and more researches on micro-lessons by educators,most of them are theoretical researches on micro-lessons.There are still some problems in the application of micro-lessons,such as: the quality of online micro-lessons is uneven,and the design of micro-lessons is too one-sided and not systematic.At present,the integration of micro class and physics and electricity teaching in junior middle school has not been deeply developed,which provides a realistic basis for the topic selection of this study.This paper carries out relevant research based on the application of micro-class in physics and electricity teaching in junior middle school,which is mainly summarized as the following contents:First of all,this paper adopts literature research method,introduces the research background,research purpose and significance of this paper on the basis of reading a large number of literature,expounds the research status of micro lessons at home and abroad,and clarifies the research content and research methods.This paper carefully analyzes the definition and description of the characteristics of micro-lesson by domestic and foreign scholars,gives the definition of micro-lesson and analyzes the characteristics of micro-lesson based on their own ideas.Combined with the knowledge of physics and electricity in junior high school,the advantages of micro lessons are analyzed and the theoretical basis of micro lessons is expounded.Secondly,the characteristics of physics and electricity in junior middle school are analyzed from four dimensions.Then the students and teachers of a middle school in Xinyang city,the third grade questionnaire survey,the middle school physics and electricity students learning status and teachers teaching status,as well as the attitude of teachers and students to micro class.Then,the principles and strategies of micro lesson design are summarized by referring to the characteristics of physics and electricity knowledge in junior middle school and the current situation of students’ learning.From the characteristics of the knowledge of physics and electricity in junior middle school and the composition of micro lessons,the design and application of micro lessons in this paper are determined: the design and application of three types of micro lessons in physics and electricity,micro teaching plans,micro guiding plans,micro exercises and micro videos.Finally,the application of a micro lesson in junior middle school physics teaching of electricity in the process,before and after the test,analysis of data,indicate that system quality class resources to establish on the depth of students’ learning in teaching physics electrical,interest in the electrical knowledge,for knowledge of the leak fill a vacancy,experimental operation ability and the cultivation of scientific inquiry ability play a positive role.Analyze the problems existing in the implementation process and give the optimization strategy.The development direction of micro-lesson in the future teaching is prospected. |