Study Of Senior Three Students' Representations And Strategies In Organic Inference Problom-Solving

With the direction of modern cognitive psychology, the paper focuses on the discrepancy of representations and strategies-selecting among gifted, average and problem students in senior three when solving 'organic inference' problems in chemistry study. This paper mainly adopts the research techniques of group testing and case analysis.In the first chapter, this article summarizes the basis, the research present situation of problem-solving in Chemistry and types and functions of Organic inference questions.In the second chapter, the article provides the research plans From the research goal, the supposition, the object, the method, the material and the procedure in six aspects.In the third chapter, the author carries on the analysis in the Yuan cognition horizontal,organic inference problems, the structurization degree of organic chemistry concept, measured the spoken language reported , discussed the factors of affecting the grade three studentsrepresentations and strategies in organic inference problem-solving.The fourth part, The author obtains the conclusions of this research.(A) Studies the eugenics the Yuan cognition level to be higher than obviously study mesozoically, but studies the mesozoic Yuan cognition level to be higher than study lives sleepily. Studies the eugenics, studies mesozoically with study lives sleepily in the organic inference problem-solving, knowledgeable, the planning, the monitor and in the regulation level the difference extremely is all remarkable, but in consciousnessly, appraisive the difference is not remarkable.(B) Studies the eugenics organic chemistry concept structurization degree in the concept "the quantity" on to look resembles is not big with study the mesozoic difference, but relates "the nature" in the concept on to have to surpass mesozoically study; Studies lives the organic chemistry concept structurization degree to relate "the nature" sleepily in the concept and "the quantity" on all greatly is lower than study the eugenics; Studies mesozoic with study lives the organic chemistry concept structurization degree "the nature" the low reason mainly is sleepily by the understanding and grasping insufficiently is accurate to the concept and comprehensive.(C) Studies when the eugenics solution organic inference question the attribute division is seven different levels (writing representation, mathematics representation, mark representation, concrete representation, method representation, image representation and abstract representation); Studies when the mesozoic solution organic inference question has used five different level attribute types (writing representation, mathematics representation, concrete representation, mark representation and image representation); Studies lives sleepily when the solution organic inference question has only used four different level attribute types (writing representation, mathematics representation, concrete representation and mark representation).(D) When they solve the organic inference problem, studied the eugenics to select the radiation thought, the restraining thought, to the thought, the lateral thought, the negative thinking and many to the thought strategy, is studying mesozoic has used the intuition thought, to the thought, the negative thinking and the lateral thought strategy, but the students who is living sleepily mainly uses the intuition thought, to the thought and the negative thinking strategy.(E) Affects the grade three students to infer the question attribute the factor to be possible organically to decompose into the psychological factor, the knowledge factor and the ability factor, affects the grade three students to infer the question solution strategy selection the primary factor to have the student Yuan level of understanding height, organic chemistry concept structurization degree grasping and the question attribute valid degree organically.Finally, the auohor proposes to enhance the high three students to infer the question solution ability four teaching to suggest organically, and points out the insufficiency of this research.