奥苏贝尔的“先行组织者”策略主张在呈现教学内容之前适当介绍相关的引导性材料,以此建立新知和旧知之间的联系,通过同化和顺化过程实现认知结构的发展。因为概念图可以将新旧知识之间的联系清晰地展现出来,所以我在教学苏教版义务教科书二年级上册“平均分”一课时,课始运用概念图展现新知与旧知间的联系,寓概念教学于生活和知识背景中;课中借助概念图的动态生成,帮助学生了解概念产生的由来,揭示概念的本质;课尾通过概念图的制 Ausubel’s strategy of “advanced organizers” advocates the appropriate introduction of relevant introductory material prior to the presentation of the teaching content so as to establish the connection between the new knowledge and the old knowledge and to realize the cognitive structure through assimilation and the process of hue. Because the concept map can clearly show the connection between the old and the new knowledge, I started to use the concept map to show the connection between the new knowledge and the old knowledge when I was teaching the second grade of the second edition of the compulsory textbook of the Sujiao version, The concept of teaching in the context of life and knowledge; class with the help of the dynamic generation of concept map to help students understand the origin of the concept, to reveal the nature of the concept;