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小学阶段长方体、正方体的表面积计算作为一个数学模型,其教学应从实际生活原型出发,充分运用观察、实验、比较、分析等思维方式,让学生亲身经历将数学实际问题抽象成数学模型并进行解释与应用的过程。因此,教学活动的设计要重视过程,处理好过程与结果的关系;要重视直观,处理好直观与抽象的关系;要重视直接经验,处理好直接经验与间接经验的关系。一、立足生活经验,建构表面
Primary school cuboid, cube surface area calculation as a mathematical model, its teaching should start from the actual life prototype, make full use of observation, experiment, comparison, analysis and other ways of thinking, so that students can experience mathematical real problems abstracted into mathematical models and explain Application process. Therefore, the design of teaching activities should attach importance to the process, handle the relationship between process and result; pay attention to intuition, handle the relation between intuition and abstraction; attach importance to direct experience and handle the relationship between direct experience and indirect experience. First, based on life experience, build the surface