从直观表征走向直观建构——基于“草图绘制”教学的几何直观能力培养策略

From intuitionistic representation to intuitionistic construction:the strategy of cultivating the ability of geometry visualization based on the teaching of"sketch drawing"

几何直观主要指利用图表描述和分析问题的意识与习惯.为实现直观表征到直观建构,提出了基于“草图绘制”教学的几何直观能力可视化策略:重视“绘制草图”的活动体验,培养直观意识;经历“绘制草图”的抽象过程,发展直观认知;内化“绘制草图”的方法步骤,形成直观品质.

Geometric intuition refers mainly to the awareness and habit of using diagrams to describe and analyze problems.In order to realize the transfer of the visual representation to visual construction,the visualization strategy of geometric visual ability based on the teaching of"Sketch drawing"is put forward Through the experiencing of"sketch Drawing",intuitive consciousness will be built;with the abstraction of"sketch drawing",intuitive cognition can be developed;and with the internalization of the steps of sketch drawing,the intuitive quality accumulates.