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小学数学一上“认位置”单元,主要是让学生体会“上下、前后、左右”等几种常见的位置关系,大部分学生能正确辨认。但是很多学生在具体情境中描述物体所在位置及其相互关系时,仍存在区分左右的认知障碍。为解决这一难点,教师可以从学生的经验与认知实际出发,借助情境与肢体,凸显“自我”中心,强化直观认知;让学生从“自我”中心到“他我”中心转变,学会辩证地理解位置关系。
Primary school mathematics, “recognize the location” unit, mainly to allow students to understand “up and down, around, around, left and right ” and several other common location, most students can correctly identify. However, when many students describe the location of objects and their relationship in specific situations, there are still some cognitive disorders that distinguish between them. In order to solve this difficult problem, teachers can emphasize the intuitive cognition from the students’ experience and cognition, highlight the “self ” center by means of situations and limbs, and let the students from “self ” center to “him ”Center change, learn to understand the dialectical relationship.