| The process and way of solving problems will be affected the cognitive impairment of students.Cognitive impairment is one of the reasons leading to low scoring rate of organic chemistry.The cognitive law of students will be followed in this paper and the corresponding teaching strategies is put forward to help students break through the cognitive barriers caused by problem solving,thus problem solving ability and teaching efficiency are improved.In this paper,the literature analysis method is used to analyze the research status of these problems at home and abroad.Combined with the characteristics of organic chemistry knowledge and organic chemistry exercises,the concepts of cognitive impairment and obstacles to problem-solving are defined,and the differences and connections between the two concepts are discussed,which lays a theoretical foundation for further research.Selected a senior three student from a high school in Harbin,a questionnaire survey and interview research are used.Based on the traces of the questionnaire and the answers,the obstacles encountered by the students in the process of problem solving are analyzed.According to the survey results,the obstacles to problem solving in the students are summarized and combined with the interview method,the cognitive reasons for arising obstacles to problem soving are determined.Based on the analysis of the questionnaire and interview results,the problems occurred are classified and determined,which include information extraction obstacles,psychological obstacles,information interpretation obstacles,information representation obstacles,thinking obstacles,application obstacles,cognitive structure obstacles and result test obstacles.By analyzing the cognitive characteristics of students,the cognitive obstacles encountered by students in the process of solving problems are determined,which include high sensory threshold obstacle,negative synesthesia obstacle,perceptual selectivity obstacle,perceptual comprehension obstacle,perceptual integrity obstacle,memory obstacle and abstract logic obstacle.Combined theory with practice,the cognitive obstacles in the process of solving students’ problems,and puts forward corresponding teaching strategies in order to achieve the purpose of improving students’ ability to solve problems and students’ students‘ problems is discussed,and corresponding teaching strategies is put forward,to achieve the purpose of improving students‘ ability to solve problems and thinking ability,and to optimize the teaching process,which has certain practical significance for teaching. |