基于策略的可视化协同知识建构支持系统研究

Research on the Strategy-based Visualized Collaborative Knowledge Building System

流行的B/S架构计算机支持协作学习(CSCL)支持系统已有较充分的发展,但在可视化、图形化、速度等交互体验上有根本性的不足,很难支持和推进高质量的学习协同。本研究探索把Silverlight应用于基于策略的可视化CSCL专门系统的技术与方法 ,讨论了其理论支持与开发思路,着重强调通过可视化的方式来重建远程学习情境中缺失的在场感,并通过一些支持学生更好协同的引导策略来促进学生"意义"与"身份"的双重建构。文章最后简单介绍了一个此类CSCL协同知识建构支持工具设计与实现的示例,该工具在支持协同知识建构方面有更大的优势。

Popular CSCL systems based on B/S architecture have been well developed for years. However, these systems have fundamental weakness in terms of interactive experience because of flaws in visualization, graphic, and speed. It is very difficult for these systems to support high quality collaborative learning. On the basis of a research that explored the technique and method to apply Silverlight to a strategy-based visualized CSCL system, the authors discuss the underlying theory and development ideas as well as the ways to rebuild the sense of presence in online learning using visualization techniques. The authors also propose means to help students to build knowledge and their identity using guiding strategies that can better support students＇ collaboration. As conclusion, the authors briefly describe the design and implementation of a sample tool for collaborative knowledge building. This tool has some advantages in supporting collaborative knowledge building.