A Study Of Micro-lecture Design For The Column Of "Scientific Perspective" In The Required Teaching Materials Of Chemistry For Senior High School Students Published By People’s Education Press(PEP)

The column of “Scientific Perspective” has been set for more than ten years in the chemistry textbook for senior high school students published by PEP.Based on the knowledge learned in each chapter,it unfolds the latest scientific trends and the frontier knowledge in chemistry before the students’ eyes,functioning as a window for students to broaden their horizon in the knowledge world of chemistry.However,the author found through investigation that in practical teaching,because of the limited teaching time,the uneven proficiency level of students and the lack of effective theoretical guidance,teaching relevant to the column of “Scientific Perspective” in the chemistry textbook for senior high school students doesn’t work smoothly,failing to fully leverage the role of this column as a way of auxiliary teaching.Compared with traditional classroom teaching,micro-lecture has the advantage of being short and pithy,which perfectly fits the simplicity and the interestingness of “Scientific Perspective”.Therefore,it can compensate for the teaching deficiency in “Scientific Perspective” and overcome limits in time and space to satisfy students’ personalized and diversified learning needs,realizing the teaching value of this column to the largest degree.Attempting to teach knowledge in the column of “Scientific Perspective” in the form of micro-lecture,this article makes a thorough study on micro-lecture design for “Scientific Perspective” in the required teaching materials of chemistry for senior high school students published by PEP.First of all,based on the comprehensive consideration of the characteristics of micro-lecture and the column of “Scientific Perspective”,the principles that should be followed in the design of micro-lecture on this column are listed.Then,through learning from two relatively mature and representative design methods of micro-lecture at home and abroad,the design process of micro-lecture matching with the column of “Scientific Perspective” is summarized.Finally,in order to improve the efficiency of micro-lecture design,a design template is formed on the basis of the micro-lecture design process,through which,teaching designs targeting at how to teach three different types of sub-columns in the column of“Scientific Perspective”--namely “Knowledge Extension”,“Real-time Hot Spot” and “VisionExpansion”,are completed with respective strategies.The effects and advantages of teaching are analyzed to verify the feasibility and practicality of this study.