问题表征过程中信息提取的实验研究

A Experimental Research on Information Retrieval During Problem Representation

以代数应用题为材料,考察领域知识不同的学生在问题表征过程中的信息提取特点以及解题成绩的差异。结果表明:初中生更倾向于按照问题的表面特征对应用题分类;领域知识丰富组和领域知识贫乏组在问题表征过程中对四类信息的提取存在差异;解题成功者对关键信息的再认率高于解题不成功者,而在多余信息和混淆信息的再认上,解题不成功者高于解题成功者。

With algebra problems as the material, we examined the information retrieving characteristics and performance of students with different domains of knowledge. The results showed that junior middle school students tended to sort-out word problems on the basis of problems＇ superficial content; the two group-rich in domain knowledge and poor in domain knowledge-had differences in retrieving information during the process of problem representation; the successful students had better performance in the key information than the failwres, whereas in terms of the recognition of redundant information and confusion information, the failures had better performance than the successful.