The Characteristics And Problem-Solving Strategies Research On Chemical Industry Process Questions Of College Entrance Examination Within The Last Five Years

The chemistry tests of college entrance examination gradually have changed from "Competence " to "Literacy ".So the study of college entrance examination questions not only has a guiding effect on the form of "Core Literacy",but also plays an instructive role in teachers' teaching and students' learning.Chemical industry process questions,which have the characteristics of large amount of information,wide range of knowledge,great degree of difficulty and high differentiation,which not only can test the students' abilities to obtain information,integrate information and solve practical problems by integrating the knowledge learned,but also make teachers and students experience the practicability of chemistry and the invalidation of tactics of doing lots of exercises,so as to lead the teaching of chemistry from the teacher-centered mode of "speaking,practicing and evaluating" to the students-oriented mode of "knowledge,ability and literacy ".The study uses methods such as literature research,text analysis,interviews,and data analysis.First of all,we learn the research status of the chemical industry process test problem-solving strategies of the last decade and explore the theoretical basis of the study using literature review.Secondly,through the text analysis,it has explored the chemical industry process questions of the college entrance examination in the last five years,which provided the reference for the teaching,learning and research of Senior Three.Thirdly,by means of the structural interviews with teachers and students,the paper probes into the common reasons why senior high school students make mistakes while solving the examination questions based on chemical industry process,and puts forward corresponding strategies for the wrong reasons.Finally,the results of teaching experiments have been analyzed by data analysis.The study consists of seven parts.The first part is the introduction,which mainly expounds the research background,purpose and significance,methods and thoughts,research status at home and abroad.The second part is theoretical research,which summarizes theoretical basis and conceptual definition of this paper.The third part is the college entrance examination questions.First of all,it is the qualitative analysis of the scores,structures and contents of the test questions for the characteristics of chemical industry process questions in the last five years.Secondly,from the perspective of question structure and analysis,the questions of the national volume I within the last five years have been deeply interpreted.The fourth part explores the wrong causes,expounding the design and implementation of the investigation,analyzing the interview results of teachers and students,and then putting forward three wrong causes of solving chemical industry process questions.The fifth part,aiming at the causes of making mistakes,it puts forward three problem-solving strategies from the two aspects: the non-intelligence factors and the intelligence factors.The sixth part is the practice research,which researches the effectiveness of the problem-solving strategies for chemical industry process questions by designing the teaching experiments.The seventh part is conclusions and prospects,involving research conclusions,research enlightenment,research innovation,research deficiencies and the problems to be solved.The conclusion of the research,the characteristics of the test: the test papers are difficult,comprehensive,and informative;the test score is 14-15;the number of questions is 1-2;The structure is well illustrated and divided into three parts: the title,the flow chart,and the questions at the end,and the question is t 7-8 vacancies,1-3 points for each vacancy;Focusing on 14 elements,the elements with higher frequency are: B,N,Na,Mg,Al,Si,Fe,S,Cl,Zn;the directions of examination are namely Separation and purification of impurity-containing minerals to prepare specified products,preparation of designated products by conversion of industrial waste water,waste gas and waste residue,and preparation of specified products from known substances through chemical reactions;the scope of the examination is based on the chemical production process,comprehensively examining the subject necessary knowledge and assessing the key capabilities of the discipline.The college entrance examination proposition trends: the papers are rich in politics,economy,culture,technology,and ecology,with basic,applied,innovative,and contemporary characteristics,which are characterized by "changes in stability" and "newness in stability",guided by "Lide Tree People" and "Five Educations",relying on the necessary knowledge and key abilities of the discipline to examine the core literacy of students,providing a basis for the selection of talents in universities,and providing guidance for the teaching of middle school education.The wrong causes of problem-solving: non-intelligent factors such as poor psychological quality and non-standardized expression;the disciplinary knowledge is not solid,and the discipline thoughts and methods are not perfect;the key abilities of discipline must have been limited,and the core literacy of discipline are lacking in intellectual factors.The problem-solving strategies,which are reducing the loss of the non-intelligence factors by enhancing students' self-confidence and developing habits of normative expression;and reducing the loss of intelligence factors by building a knowledge system and training discipline thoughts and methods;improving key competencies and penetrating the core literacy of the discipline.Practical research: the problem-solving strategies for chemical industry process questions are effective.