一、课题研究的背景1.国内外相关研究述评。目前国内有关知识网络图的介绍和应用非常之少,表明人们尚未认识到知识网络图作为教学设计的一种有效方法和工具的应用潜力。目前在小学阶段还没有相关课题的研究,有少部分通过论文的形式把知识结构图进行简单的论述,而真正立项为课题的还没有。所以,本课题研究从一 First, the background of the research 1. Review of relevant research at home and abroad. At present, there are very few introduction and application of knowledge network in China, which shows that people have not yet realized the potential of knowledge network as an effective method and tool for instructional design. At present, there is no research on related topics in primary school, and a small part of them simply discusses the structure of knowledge through the essay. However, the actual project has not yet become a subject. Therefore, this topic from one