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you cha sheng jie jue you ji he cheng de wen ti biao zheng cha yi ji qi ying xiang yin su
Author(s): 
Pages: 217-222+216+255
Year: Issue:  4
Journal: Psychological Science

Keyword:  problem representationorganic synthesisamount of knowledgestructure of knowledge.;
Abstract: 用两个实验探讨了大学本科化学专业优生和差生解决有机合成问题所运用的问题表征的类型及其差异。结果表明:(1)大学生解决有机合成的问题表征有三种类型;符号表征、方法表征和机理表征。(2)优生能灵活运用上述三类问题表征,特别是运用机理表征抓住问题的关键,进而采用方法表征和符号表征来解题;差生则停留于符号表征和方法表征。很少采用机理表征,而方法表征又往往选择错误,因而不能正确解题。(3)优,差生在问题表征上的差异与其知识总量和知识结构有密切相关。
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