- 認知科学 (ISSN:13417924)
- vol.23, no.3, pp.201-220, 2017-09-01 (Released:2017-03-01)
In order to clarify the nature and mechanism of socially constructive interaction, this paper presents an analysis of an Hypothesis-Experiment-Instruction (HEI) classroom discussion in which 21 third-graders collaboratively developed a rudimentary scientific concept of air. The lesson unit consisted of 11 problems whose answers were to be pre-dicted and discussed one at a time. The analysis focused on the 8th class discussion,which is seen to be most critical for the conceptual change of the children. The author adopted two analytic perspectives: the framework theory perspective and the knowledge-in-piece perspective. From the framework theory perspective, each child’s model was unique. The diversity of the explanatory model in the class was main-tained in the entire discussion. From the knowledge-in-piece perspective, every child actively engaged in the discussion, integrating various knowledge pieces into his/her model. Role change between task-doing and monitoring in a collaborative situation basically led children to elaborate their models. Particular type of monitoring aroused in the classroom played an interesting role in constructing a newer model.