Research On The Application Of "Micro Class" In High School Chemistry Teaching From The Perspective Of TPACK Theory

As the development of the times,the requirement of personnel training become higher and higher,the mode of education has increasingly update.Based on the development of the social informatization and the transformation of communication mode,the flipped classroom teaching mode of micro class has entered the middle school class step by step.Micro class originated from the Khan Academy curriculum in the world,and the article studies in Chinese research originated in the Southern China area of the staff.Micro class refers to the wonderful process of teaching and learning activities in the classroom and outside,basing on the curriculum standards and teaching practice,researchers take the streaming media as the main carrier,to teach some knowledge points in the teaching process,including crux and doubts,or teaching process.It is a new concept emerged from the "flipped classroom".According to traditional teaching theory in academic books,that class is a teaching process unit which has limit time and organization,its role is to achieve the purpose of local teaching which complete,however local.The micro class has the corresponding property requirements,but also reflects the era characteristics of information society.After literature review,it is found that in the domestic field of chemistry education,the research on the theory of micro class is richer gradually in recent years,but the application of micro teaching in high school chemistry teaching practice is few.Therefore,based on the TPACK theory which has the information technology and the teachers' comprehensive ability,this article makes further research on the case of micro lesson applied to the practice of high school chemistry teaching,to rich micro class production and design theory,and survey the effects that high school teachers teach course and students learn chemistry knowledge in the micro course by using empirical methods,and propose strategy of chemistry micro-production and design.This paper can be divided into four parts altogether.The first part is the theoretical study,combing the core concepts and theories of TPACK,micro class,flipped classroom and so on.After theoretical researching,to put forward the pertinence and the necessity that introduced micro class into high school chemistry class,as well as take advantage of the TPACK theory to guide micro class design.The second part is a investigation about the high school students chemical learning situation.Through designing and using the questionnaire to understand the problems that students learning chemical knowledge in the traditional teaching mode,mainly aimed at the teaching mode,the feedback mechanism,the teaching effect,etc.The third part is to put forward the countermeasures and the teaching design cases.According to the status of students and the ability of teachers,,this paper proposes the mode of using the micro lesson to carry on the teaching under the guidance of the TPACK theory,and provides 6 copies of relevant case design.The fourth part is the practical verification.After the relevant micro lesson teaching,teachers can check the effect of the relevant teaching mode changes through the classroom teaching situation and examination.The following conclusions:(1)through interview and questionnaire data feedback,the students are interested in the chemistry teaching based on the micro lesson,and learning motivation has obviously improve.(2)through interviews,questionnaire data feedback,as well as control experiments found that not any chemical knowledge is applied to the micro class teaching,different class types and knowledge points have a certain effect..It is reasonable to make micro lesson design on the content of the necessary.(3)through some practices,it is found that the students' extracurricular study effect is obviously improved through the micro teaching,and master degree to the content of micro teaching is better than the traditional teaching.It shows that the establishment of the learning model based on the micro class is helpful for the students to study the chemistry knowledge.This paper explores and verifies the feasibility and effectiveness of the micro lesson apply to the high school chemistry teaching from the perspective of TPACK theory,through the specific case design and practice to help students improve their interest and ability in chemistry learning.To provide theoretical guidance for chemistry teaching practitioners,but also for the future to engage in micro teaching research added examples,enrich the path of the depth of information technology and curriculum integration,has the reference value for the study to the chemistry classroom teaching mode and method in the information society.