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Development of expertise in mathematical problem solving
Investigated the distinctive strategies employed by expert and novice problem solvers (forward-chaining and means-ends, respectively) in 7 experiments using 14 mathematics graduates and 162 9-12 yr olds. Exp I studied the course of development of expertise using a subset of kinematics problems. Ss d...
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Published in: | Journal of experimental psychology. General 1983-12, Vol.112 (4), p.639-661 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | Investigated the distinctive strategies employed by expert and novice problem solvers (forward-chaining and means-ends, respectively) in 7 experiments using 14 mathematics graduates and 162 9-12 yr olds. Exp I studied the course of development of expertise using a subset of kinematics problems. Ss demonstrated the switch from a means-ends to a forward-chaining strategy. This was associated with the conventional concomitants of expertise such as a decrease in the number of moves required for solution. Ss appeared to categorize problems according to the order in which equations would be required. Exps II and III tested the hypothesis that the means-ends strategies used by novices retarded the acquisition of appropriate schemata. The use of nonspecific rather than specific goals was found to enhance the acquisition of expertise, the number of moves required for solution, and the number of equations written without substitutions. Exps IV and V, using geometry problems, duplicated the enhanced rate of strategy alteration found with reduced goal specificity. Results of Exps VI and VII indicated that reduced goal specificity also enhanced the rate at which problem solvers induced appropriate problem categories. It is concluded that in circumstances in which the primary reason for presenting problems is to assist problem solvers in acquiring knowledge concerning problem structure, the use of conventional problems solved by means-ends analysis may not be maximally efficient. (20 ref) |
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ISSN: | 0096-3445 1939-2222 |
DOI: | 10.1037/0096-3445.112.4.639 |