Study On Chemical Reaction Rate,Limitation And Direction In Elective Textbooks Based On Chemical Equilibrium Between Pep Edition And Shandong Edition

The content of Chemistry Teaching in senior middle school,the principle of chemical reaction,occupies an extremely important position,it is human in based on the study of a large number of chemical change,summarize the obtained on the chemical reaction of general rules,is a deep understanding of the nature of the chemical changes,is an important component part of the basic theory of chemistry.Therefore,in the domestic and foreign previous chemical curriculum reform,is always the focus of reform.The chemical reaction rate,the limit of the chemical reaction and the direction of the chemical reaction are the three important components of the chemical reaction principle.Comparison of edition and textbooks of Shandong science and Technology Press in the arrangement of the contents of the chemical reaction rate,extent and direction of the three parts of the education,including the content,the chapter arrangement,knowledge organization and characteristics.And focuses on two versions in the content of chemical equilibrium,PEP focusing on the use of Le Chatelier's principle to resolve the problem of chemical equilibrium,for single condition changes after the equilibrium to shift direction judgment is decided based on the cognitive level of the new curriculum knowledge goals and high school students,is a qualitative judgment.Shandong version is more focused on on the use of chemical equilibrium constant,by the size of the equilibrium constant and the concentration quotient compared quantitatively determine the equilibrium to shift direction understand more intuitive.Two can be used to solve a lot of chemical balance problems,but for some of the chemical balance of the two methods used to have their own advantages and disadvantages.In this paper,using two-stage detection analysis of students' problem solving chemical equilibrium by Le Chatelier's principle and chemical equilibrium constant of,and summarizes the appropriate problem-solving methods of different kinds of questions.It provides the basis for the high school chemistry teachers in the choice of teaching strategies,and provides reference for the textbook writers,so that the teaching material is better for the teaching service.This paper mainly consists of five parts:The first part is the question,combined with the high school chemistry curriculum reform and the province high school chemistry textbook compilation,elaborated the paper selected topic origin.In the second part,the development process of the chemical reaction principle is expounded,and the setup of the module of the chemical reaction principle is analyzed.The third part expounds the purpose and method of this research,first to teach and Luke version two versions of textbooks,column design and content selection in contrast with the overall analysis and specific to the comparison of the contents of the chemical reaction rate and extent of chemical reaction,chemical reaction of three parts,from content arrangement sequence to the content organization and presentation characteristics of comparative analysis.The fourth part is the application of Le Chatelier's principle and chemical equilibrium constant in chemical equilibrium.Describes the chemical balance play an important role in Chemistry Teaching of middle school,and then studied the application of Le Chatelier's principle and chemical equilibrium constant in chemical equilibrium,finally compare in solving chemical equilibrium problems,and teach and Luke version in the Le Chatelier's principle and chemical equilibrium constant focus.The fifth part is the application of the use of two type test method was used to detect the Le Chatelier's principle and chemical equilibrium constant in chemical equilibrium.First,explain the research background of diagnostic teaching,and two-stage detection method and detection purposes,then the implementation of two sections test.Finally,according to the test results.Analysis application in solving chemical equilibrium problems of Le Chatelier's principle and chemical equilibrium constant.The sixth part is to teach and Luke version of the principle of chemical reaction,chemical reaction rate,chemical reaction limit,direction of chemical reaction of three parts content comparison and analysis of research conclusion,and provides the suggestions.