| Chemical calculation explores substances and their changing rules from a quantitative perspective.It takes the law of conservation of mass and quantity of substances as the core,uses the knowledge of chemical formulas,chemical equations and solution composition as tools,and understands and applies chemical concepts,principles and knowledge of elements and compounds through calculation,judgment and reasoning.Through the analysis of the development status of middle school students’ chemical calculation ability,it is found that middle school students’ chemical calculation ability is generally not high.No matter from the perspective of college entrance examination,personal development,implementation of core literacy,it is of great significance to improve students’ chemical computing ability.By exploring the factors that contribute to the formation and development of high school students’ chemical computing ability,teachers can solve the problem of high school students’ insufficient computing ability in a targeted way,so as to improve students’ grasp and application of chemical knowledge.The main work of this paper is as follows: First,through consulting and combing relevant literature,it is found that front-line teachers attach great importance to the research of high school chemical calculation work,and the research scope is wide.The existing research results show that there are mainly four factors affecting the chemical calculation ability of first-year high school students: Problem representation degree,knowledge factor,problem solving strategy choice and mathematical operation skill,but the formation factors of high school students’ chemical calculation ability have not been deeply discussed.Therefore,this paper focuses on the analysis and research of factors affecting the development of chemistry calculation ability of senior high school students.Second,on the basis of literature research,starting from the 2017 edition of high school chemistry curriculum standards and the compulsory module of the new textbooks of human education edition,the characteristics of high school chemistry calculation are analyzed: pay attention to the application of conceptual knowledge,principle knowledge,and knowledge development;Various types of calculation,emphasis on sample learning,"heavy calculation,light algorithm".Thirdly,on the basis of the analysis of the factors affecting the students’ chemical computing ability.In combination with the content of this study,a test paper is prepared to test the research objects by using the questions of college entrance examination,chemical calculation exercises related to the textbook after class,and SPSS25.0 is used to analyze the test statistical data.Based on the concrete thinking process of students in dealing with chemical computing problems,it is concluded that there are two main factors affecting the development of students’ computing ability,that is,problem representation and strategy choice.At the same time,it is pointed out that understanding knowledge is only the basis of developing computing ability,and computing ability is the guarantee of developing computing ability.Fourthly,according to the results of the investigation,combined with some teaching cases and my teaching experience,further put forward some suggestions on the teaching of chemistry calculation in high school. |