Research And Development Of Chemistry Exploratory Experiment Micro-lecture In Middle School

High school Chemistry curriculum standard in revision propose that five dimensions constitute Chemistry subject core literacy:macroscopic identification and microcosmic explore?changing concept and balance thought?evidence reasoning and model cognition?experiment explore and innovation consciousness?scientific spirit and social responsibility.The exploration of chemistry experiment not only promote the change of students' learning style,but also cultivate students' innovative spirit and practical ability.The exploratory experiment in Chemistry can promote the change of students' learning style,the exploratory experiment accounts for more than half of the total experiment in the high school chemistry textbook.Due to the limitation of teaching conditions,in the real chemistry class,the teacher conducting the exploratory experiment,"follow the textbook"?"Follow suit" exist widely.Based on this contradiction,it is necessary to find a new learning space for exploratory teaching of experiment.Based on the characteristic of micro-lecture,which is short?pithy?targeted,I take "the development of chemistry exploratory experiment micro-lecture in the middle school" as the research object.The main contents of this paper are as follow:it first conducted a review about the status quo of micro-lecture at home and abroad,reflected inadequacies?found problems?analyze the necessity of this study;combine micro-lecture' definition and feature,seeking the theoretical basis for the combination of micro-lecture and exploratory experiment.Conduct a questionnaire among high school students,not only learning about students' attitude and cognition toward micro-lecture and chemical exploratory experiment,but also implement situation of micro-lecture and exporatory experiment.Introduces six types of chemical exploratory experiments micro-lecture,putting forward three production process,including "spliting the exporatory process pre-class micro-lecture","breaking through difficulties micro-lecture","interesting exporatory after-school micro-lecture".Putting forward the design principles of chemical exploratory experiments micro-lecture and four experiment themes' exporatory teaching process,including "the nature of matter"?"the synthesis of matter"?"the composition of matter"?"the inspection of matter",develop four cases micro-lecture.Based on the practice of micro-lecture,analyse the effect of micro-lecture.Finally,puts forward the construction of high school chemical exploratory experiment micro-lecture library,and gives the construction instructions.