问题与改进:小学生“面积”概念形成的过程研究

Problems and Improvements:Research on the Formation Progress of“Area” Concept of Primary School Students

面积作为可测量的量,是促使学生从一维空间向二维空间转化的核心内容,对于学生空间观念的形成具有重要价值笔者通过教学观察发现在本单元教学过程中存在对面积运算的过于关注,从而引起学生对面积概念理解上偏差和困惑.基于这一问题,研究者从课程内容、教学环节等方面做出调整和改善,并对学生学习过程和结果进行了观察和调研.

As a core concept that transforms students'geometrical thinking from one-dimensional to two-dimensional space,area is of great significance to help students understand the concept of space.Students may find it is difficult to understand the concept of"area".The cultivation of children's area concept should put emphasis on three aspects,that is the understanding and application of area unit,the reservation of area concept and the application of area formulas.The authors improved the curriculum contexts and teaching design with the observation of the classroom observation.