Micro-lecture Principle For The Application Of Knowledge Teaching In Chemistry Concept

The core purpose of chemistry new curriculum reform is to improve students' scientific literacy,focusing on the development of students' scientific literacy with a three-dimensional target.In knowledge and skills,it sets the goal of knowing the main clue of the development of chemical science;understanding basic chemical concepts and principles,the nature of chemical phenomena,the basic law of chemical change;and form the basic concept of chemistry as a science.The basic concept and goal of the new chemistry curriculum fully embodies the importance of knowledge teaching of chemical concepts and principles,and also implies new teaching requirements.To learn concepts and principles does not simply mean to memorize them,but to comprehend them,thus forming the basic concept of chemistry as a science.That poses a great challenge to traditional teaching method.Micro-lecture online video is characterized by topic prominence and short duration,which lightens the heavy cognitive load in the part of learners.Therefore,improving traditional teaching through micro-lecture online video is of great help for enhancing both teaching and learning qualities.This paper based its research on the theoretical basis of application research in teaching of concepts and principles.It has employed modern educational technology to improve teaching efficiency,and has implemented carefully designed micro-lecture online video teaching scheme,whose effect has been inspected in order to provide reference for middle school chemistry teachers in applying micro-lecture in teaching the knowledge of concepts and principles.This paper can be divided into six parts.Part one is introduction.It illustrates the research background,content,and its significance and value,and research methods.This study is in the micro era,as a positive response to the new curriculum calls,combined with literature research method,experimental research method,case study method,questionnaire survey method to explore the application of micro lesson in Chemistry Concept Teaching in principle knowledge.Part two provides the literature review.Through searching Chinese Journal Net,and concluding all the related papers,this part gives a review of the teaching of chemical concepts and also of micro-lecture,which lays a solid foundation for this research.Part three elaborates the theoretical basis of core concept.This part introduces the theory of micro-lecture,cognitive load theory,cognitive structure assimilation theory,visualization theory and their value in the teaching of the concept of micro course theory,which provides theoretical basis for this research.The following part presents the construction of the mode of applying micro-lecture in teaching chemical concepts and principles in high school.It gives a comprehensive analysis of the knowledge of chemical concepts and principles in high school,the characteristics of students' cognition,and also of design principles of micro-lecture,and its modes,which provides corresponding technical support for application of micro-lecture in teaching chemistry concepts and principles.Part five describes the practice of applying micro-lecture to teaching chemical concepts and principles.According to relative teaching theory,high school chemistry curriculum standard,and the principles of designing a micro-lecture,the actual teaching scheme has been designed,and corresponding tests and questionnaires are made to investigate the results.Through analyzing the results,the effect of applying micro-lecture in teaching chemistry concepts and principles has been timely evaluated.The last part offers the final summary and prospects.It sums up the results of this study,and also reflected on the shortcomings of this study.What's more,it pointed out what is innovative in this study,and brings forward the prospects for future research.