| This study uses a cognitive operation method to explore the mechanism of how problem representation affects problem-solving, and explore a set of method to train the capacity of the physical problem representation.In study 1 ,180 high school students were tested by using cognitive working method to study how problem representation affects problem-solving ability, focusing on problem representation awareness of students having different academics as well as the the impact of correctness on problem-solving. At the same time it tested which ones of the problem representation played the most important role in different levels.Study 2, Regarding to the 180 tested students as the research objects, carried out a 10-week training intervention, which is really the physical problem representation ability. Intervention methods have really been taken to the physics, problems training, the physical abilities and so on.As the above two studies,it reached the following conclusions:(1) Awareness of the physical problem representation and characterization of the correctness of a prositive correlation,the physical problem representation and problem solving ability are just related.(2) The text representation, and simple characterization of the physical problem-solving ability is a greater impact on the external representation of the drawing representation which is the key to solve the problem affecting the physical factors which can contribute to draw the physical scenario map text correctly characterized drawing motion analysition of force diagram map can improve students'the proper characterization and simple characterization.(3) The academic ability of different levels of students is different from the physics problem-solving characterization of the degree of influence, the text representation and simple characterization capability are the main facters affecting excellent students'solving problems physical characterization and the ability to affect the characterization of scientific and the ability to affect the characterization of scientific formulas the main factors of middle-class,poor students to solve the problem.(4) The training of representation physical abilities can make high school students'problem representation ability improved.(5) Students of different levels academic abilities in Problem representation have significant differences, excellent students are not better than middle-class and poor students,middle-class and poor students are also not partecularly different in effection. |
