Experimental Study On The Cultivation Of Problem Solving Strategy Of Chemical Reaction Principle In High School Students

Chemical reaction principle is the content of High School Chemistry elective 4.Belongs to must choose the content,and occupies the proportion in the college entrance examination Larger.But because the contents of the module are abstract,It is necessary to use theoretical analysis to solve complex chemical problems.Many students in the process of learning,Due to the lack of appropriate learning methods and strategies to create a fear of difficulties,so that the teaching effect of the module is often not ideal.Problem solving is a high level of learning goal,The problem is the starting point of thinking,and the invention always originates from the discovery of the problem.lt is of high educational value and practical significance to explore how to train students'chemical problem-solving strategies effectively in the "principle of Chemical reaction"module.This thesis is based on the characteristics of the teaching content and the status of the students.To design a training program for solving chemical problems,And I choose the second grade students of A Senior High School in Xixogan as the research object.Carry out educational experiments to test the effectiveness of the training program.The research paper can be divided into four parts.The first part is the theoretical research,expounding the related concepts of problem solving,Combing relevant research results at home and abroad,At the same time,the related theory of problem solving is analyzed.The second part is the investigation of the current situation of the problem ability of the chemical reaction principle module of senior high school students.In combination with the principle of chemical reaction,the knowledge and content of the middle school students are studied.A questionnaire was compiled to investigate the status of students'ability to solve chemical problems.This paper investigates the common methods and ideas of students in solving chemical problems,and also finds out that the students'application of problem-solving strategies is affected by the weak theoretical foundation.The third part of the experimental teaching research,in the experimental class to adopt six kinds of problem-solving strategy teaching training,Normal teaching in the control class.During the experiment phase,a strategy is trained every week,Including strategy explanation,example analysis,students' consolidation exercises,which require students to write a complete thinking process of solving problems,and observe the classroom performance of students,understand the students thinking strategy grasp.After two months of problem-solving strategy training,Problem-solving ability questionnaire and chemical test results were used to test the effect of problem-solving training.At the same time,two class students were interviewed and investigated.And collate the interview records,Understand students' attitude and views on problem-solving strategy teaching.The following conclusions have been drawn from the study:(1)through the data analysis of pre-and post-test questionnaire of students in the experimental class,it is found that there are significant differences in students' problem-solving ability.At the same time,the students in the experimental class and the control class were tested in chemistry.The results show that.There were significant differences between the students of the experimental class and the control class.This shows that the students in the experimental class have improved their chemistry scores after the problem-solving strategy training.Among them,the analogy and contrastive strategy of the experimental class students,The mastery of the whole and decomposition strategy is better than that before the experiment.(2)Through interviews and classroom observation,it is found that the students' attitude towards solving chemical problems has changed,their enthusiasm has been improved,and their thinking on the problems has become more profound.This thesis explores the training methods of problem-solving strategies in the"principle of Chemical reaction" module.The problem-based chemistry teaching strategy training is helpful to improve the students' problem-solving ability.Carrying out targeted experimental training has a positive effect on students to raise problems,think problems and solve problems.