小学生思维处于由具体形象思维向抽象逻辑思维的过渡阶段,这一阶段恰恰也是儿童空间知觉(即形体直观认知能力)形成的重要阶段。空间观念的形成,仅靠观察是不够的,还必须有适当的活动经验,因此学生的生活经验是开展空间与图形教学活动的基础,这是他们理解几何图形、发展空间观念的宝贵资源。教师应让学生在生活中积累生活经验,在教学实践中“玩”数学教具、实物、图形,加强直观演示,让他们通 Pupils’ thinking is in the transitional stage from concrete imagery to abstract logical thinking. This stage is also an important stage in the formation of children’s spatial perception (ie, intuitive cognitive ability of the body). The formation of the concept of space, observation alone is not enough, but also must have appropriate experience of activity, so students’ life experience is the basis of space and graphics teaching activities, which is their invaluable resource for understanding geometry and developing space concept. Teachers should let students accumulate life experiences in their daily life. In the practice of teaching, “play” math aids, physical objects and graphics should be strengthened so as to make them intuitive