Development Of Cultural Productivity Of Marxist Philosophy Of Culture Perspective

Problem solving is an essential behavior in human life,while students' learning activities also belong to the problem solving process.As a problem-solving strategy,the problem sheet can be applied to process and transform a difficult or centralized big problem,which can be decomposed into several simple small problems.After these simple small problems being solved,knowledge can be acquired and thinking mode of problem-solving ability can be cultivated.Being a basic concept and principle,chemical theoretical knowledge reflects the essential attribute and internal law of material change,serving as the core content and knowledge framework of chemical discipline.Therefore,the problem sheet teaching strategy is of great practical significance for solving the theoretical knowledge problems of chemistry.Judging from the practical teaching on theoretical knowledge of chemistry in senior high schools,the author summarizes the following situations existing in the teaching on theoretical knowledge of chemistry by interviewing the first-line teachers:(1)large proportion of theoretical knowledge is abstract and difficult to understand;(2)in the teaching of theoretical knowledge,strategies adopted by teachers focus on stimulating students' interest in learning from the senses rather than providing guidance on methods for theoretical knowledge information extraction.The cultivation of the awareness of theoretical knowledge problem solving is also deficient;(3)the teaching of theoretical knowledge should focus more on the construction of chemical knowledge system.In the mean time,teachers also draw attention on the relationship between concepts and the construction of chemical knowledge system.In view of problems existing in the theoretical knowledge teaching,the psychological model of chemical theoretical problem sheet has been established in combination with steps of solving problems under the teacher-type theoretical knowledge.On the basis of the relevanttheories of cognitive psychology,the problem sheet templates of chemical concepts,reaction rules and material structure are extracted to provide training materials for the empirical research of the problem sheet of chemical theoretical knowledge.To verify the effectiveness of problem-solving in theoretical knowledge of chemistry,the author adopts the method of tracking training and includes all kinds of conceptual problem sheets of redox reaction as preexperiment tests;the pre-,mid-and post training of problem sheets are implemented.In the process of training,the problem sheet is recorded to compare the teacher-type problem sheet with all kinds of students;the battery working principle problem sheet is constructed as a post test.The teacher-type and the student-type problem sheet are compared and analyzed.Problem elements extraction,problem organization logic and knowledge system construction consciousness act as evaluation standards to analyze the effectiveness of problem sheets.Given that,the author gets the following conclusions on the empirical research results: first,the obstacles of theoretical knowledge learning on chemistry are mainly related to the characteristics of knowledge.Secondly,the teaching strategy of the problem sheet is helpful to improve the students' ability to solve problems related to the theoretical knowledge of chemistry.Thirdly,the problem sheet training helps to improve students' professional level continuously.Fourthly,the effects of problem form training on the problem-solving ability of students at different levels are distinguished,while the middle-level students are the most obvious.For the construction of the problem sheet of chemical theoretical knowledge,the effect of problem-solving ability training of students at various levels are also different.