On The Validity Of Chemistry Lessons In Senior High School

Since 2008, the American college of new Mexico, SAN Juan David Penrose (David Penrose) is proposed for the first time since the concept of" microlecture "," microlecture " has become a hotspot of research on the race, the research and practice has become the key to promote the development of microlecture applications and drivers. While domestic exploration of " microlecture " is in foshan, guangdong province department of education organizations micro teaching contest for right from the beginning, then around the exploration of micro have closely akin to the steps.Data show that the microlecture connotation characteristics of relatively full, and the microcourses in the field of design, application and evaluation research are also gradually expand, but combined with the subject in a certain period of design and application research is not enough in-depth, especially the effectiveness of the design, application and the class will integrate are very few people involved in the study of literature. Therefore the author based on the connotation of the "high school chemistry" micro class characteristics, structural elements, the design strategy and application practice analysis, through the theoretical analysis method, video records method, interview method, questionnaire method and case study method to probe the current situation of middle school chemistry micro lesson, and on the basis of this topic class that has the effectiveness of the effectiveness of the evaluation system of high school chemistry course was analyzed, and the results show that:(1)The Micro high school chemistry course of goal setting is more inclined to knowledge acquisition, the main and the current college entrance examination system, the teaching idea, teacher educationviewpoint inseparable;(2)Teachers can generally consider when choosing the class teaching content to conformance with the teaching goal, but a single content choice, tend to the teaching material content and theme;(3) The teacher showed a trend of simplificationwhen choosing the teaching method type, but based on the teaching method of teachers design activities are characterized by diversified types, students lack of activity type, two levels of differentiation is serious, failed to highlightmicroscopic teaching advantage;(4) The teaching activity structure integrity is lower, the main is passed-type,which given priority toignore the possibility of students to explore and discover;(5) The micro class production method diversified, more is given priority to with CS+PPT and classroom shooting, but the overall quality is low, and the application range is narrow and more used in the development of professional skills and improving between teachers;(6) Microclass application targeted strong, but the application model is relatively single, mainly for extracurricular autonomous learning and classroom flip model, and the application effect is not obvious.