抄録
This paper describes a method for representing the learner's conceptual changes before and after science instruction. A concept map, as suggested by Novak, was used in this research to probe a learner's concept. To denote conceptual change, concept maps were divided into clusters of similarly linked patterns, and then the clusters were separated into before and after instruction. As a result of the analysis, five clusters were identified and the conceptual changes of each learner shown by moving from one cluster to another. Then, to define the characteristics of the five clusters, concept maps were compared from two points of view. First, each map of five clusters was compared with the master map, and second, three modules which were meaningful units in the master map were used to probe the characteristics of the five clusters. The results show that this method can be used to analyze learners' conceptual change. Therefore, the method suggested in this paper is useful for summative evaluation and for instructional design.
