The Teaching Practice Of Key Competencies Of Changing Concepts And Balancing Thoughts In High School

Changing concepts and balancing thoughts have played an indispensable role in forming chemistry discipline ideas and methods for high school students and realizing the development of core literacy in an all-round way.Establishing chemical balance thinking is the core of high school chemistry learning,and it is also the difficulty.In recent years,with the implementation of the new curriculum standards,there have been some researches on teaching strategies for exploring and developing students' core literacy.Up to now,there is no research on what knowledge in the high school chemistry knowledge system can be used for the development of students' changing ideas and balancing ideas,how this knowledge should be taught,and how to know whether this knowledge really enables the development of students' changing ideas and balanced ideas.A comprehensive analysis and explanation is a new direction for exploration.This research first attempts to find the value of previous research through literature analysis,and to determine the new goal of the research: to extract the knowledge content in the high school chemistry knowledge system that can develop students' key competencies of changing concepts and balancing,and achieve key competencies of changing concepts and balancing in senior high school chemistry.Distribution analysis and weight analysis of knowledge system.Use interactive teaching software to design classroom teaching activities of "Chemical Balance Exercise" and carry out teaching practice.Through the evaluation of students,it is verified that the use of software to design teaching activities on the theme of chemical balance can effectively construct students' changing concepts and balance ideas,and its research cases can provide references for teaching practice.The thesis consists of five parts in total:The first part,through the analysis of relevant literature,combs the status quo of research related to changing concepts and balancing ideas since the release of the new curriculum standards,including research methods and case studies,etc.;and then clarifying the concepts of change and balancing ideas based on the relevant literature and new curriculum standards The connotation.In the second part,according to research status,the research objectives and content of this research are designed,the research methods are clarified,and the research framework is drawn.The third part is to sort out the relevant knowledge related to changing concepts and balancing thoughts in the high school chemistry textbook published by the People's Education Edition,analyze the weight of this literacy in the sorted knowledge points,and get the knowledge content that can best develop the literacy.The fourth part is to use the interactive teaching software platform to design the twoclass teaching activities of "Limits of Chemical Reactions" and "Movement of Chemical Balance",and innovative teaching cases.The fifth part is about teaching practice and empirical research.Two parallel classes with similar levels in the second grade are selected as the teaching experiment research objects.The teaching of the experimental class uses innovative interactive software teaching design,while the control class still uses the teaching plan designed by the chemistry teacher of the practical school.After the teaching is over,the test paper is designed to test and examine the development of the core literacy of the experimental class and the control class.The sixth part is to The analysis of the results of the practice evaluation research mainly includes the pre-test analysis of the experimental class and the control class,the overall analysis of the test paper,the analysis of the first and second index scores,and the result analysis of the factors affecting the development of the experimental class' s literacy.The seventh part is the research summary,and the research conclusion is reached:the teaching of chemical balance can help students to build the concept of change and balance to the greatest extent.Compared with traditional teaching methods,software teaching can stimulate students' interest in learning to a certain extent,and improve students' level of change of concept and balance of thought.At the same time,this study also has some shortcomings.