知识建构的有效途径：基于知识可视化的辩论

An Effective Approach to Knowledge Construction: Argumentative Activity Based onKnowledge Visualization

辩论被认为是一种通过对话促进思考的社会活动，应用于教学能促进学习者的知识建构，但教学实践中，开展辩论活动困难重重，效率低下。该文在分析知识可视化理论与辩论式教学理论的基础上，提出知识可视化工具在辩论活动中应用的设计框架和实施模型，然后随机选取40位11-12岁的儿童开展准实验对比研究。研究发现：知识可视化工具能促进被试者知识建构，并且对于儿童来说，辩论思维导图应用效果优于论点关系表。

Argumentation is considered as a social activity which promotes thinking by conversations. Making argumentationcan promote students’ knowledge construction. However， teachers approved that it is really extremely difficult and inefficient inconducting an argumentative activity in classes. Based on the analysis of knowledge visualization theory and argumentative teachingtheory， we put forward a framework and an implementation model of using visualization tools in an argumentative activity. Agroup of 40 students aged 11 to 12 were chosen randomly to participate in a quasi-experimental study. The result shows that usingvisualization tools can promote the knowledge construction of the experimental subjects. As to the style of visualization tools，argumentative mindmap is proved to be more effective than Pro-Con tables for children.