Design Of Micro-course In "Chemical Reaction Principle" For People's Education Publishing House

With the development of information society,the development of network technology and communication technology has spawned a new media ecological-environment,our life has also changed a lot.More and more life was miniaturized.In such a background,micro course was born.Comparing with the traditional course,the micro-course has the advantages of small learning capacity and wide selection.It can present the teaching key and difficult points and attract the students' attention in a short time.It regards the students' cognitive process as the basic design idea of the course that conforms with the characteristics of psychological development.So the promotion and application of micro-courses are paid more and more attention in the field of education.Based on the analysis of the status of micro-curriculum development at home and abroad,this paper defines the concept of micro-course,analyzes the micro-curriculum resources of Chemical Reaction Principle,and understands the teaching present situation of The Theory of Chemical Reaction Principle as well as students and teachers' cognition about micro-course through the questionnaire survey and interview method.The Bloom education target taxonomy theory is applied to the micro-course teaching design of The Chemical Reaction Principle and puts forward the corresponding design principles and micro-course design process.Firstly,according to the theory of Bloom's educational goal taxonomy,the knowledge points in The Chemical Reaction Principle are divided into four types: factual,conceptual,procedural and introspective cognition.On this basis,combining with the "ordinary high school chemistry curriculum standards(experimental)"(hereinafter referred to as standard),the paper refines the knowledge points of The Chemical Reaction Principle,determines the specific content of micro-course teaching,and micro-curriculum design,which concludes three micro-course teaching design cases-“the design of thesalt hydrolysis of the essence","material conservation" "solution of the concentration of ion concentration comparison".The design idea of micro-course is as follows: According to the type of knowledge points and the teaching requirements for the knowledge points,the two-dimensional classification tables of Bloom's educational goal taxonomy are used to determine the position of teaching objectives in the classification table and design teaching activities accordingly.The teaching objectives,teaching activities and evaluation of the teaching cases are analyzed,and the corresponding teaching videos are produced.This micro-course design case not only gives the micro-course script design template but also the preparation of the teaching design table.At the end of the article,the paper puts forward the application direction of micro-course,analyzes the shortcomings of this research,and prospects the development of micro-course.The ultimate goal of this study is to give the teachers a reference that provides a more complete and systematic theoretical basis for the analysis of the knowledge points of The Chemical Reaction Principle in teaching.The research shows that Bloom's educational taxonomy and classification tables all contribute to the teachers' understanding of the curriculum,the design of teaching programs and the design and objectives of the evaluation system.It optimizes the teaching design ultimately,improves the educational status and enhances the quality of teaching purpose.