在开展几何教学时,教师必须帮助小学生建立空间观念,否则学生就不能深入的理解几何的概念。教师可以应用体验教学法让学生直观的理解空间几何概念、应用对比教学引导学生建立抽象的几何认知、应用数学活动帮助学生建立数形的思维。只要教师应用这种教学方法,就能帮助学生建立空间几何观念。 In carrying out geometric teaching, teachers must help pupils to establish the concept of space, or students can not deeply understand the concept of geometry. Teachers can apply the method of experiential learning to make students intuitively understand the concept of space geometry, and apply comparative teaching to guide students to establish abstract geometric cognition and apply mathematical activities to help students to establish a few-dimensional thinking. As long as teachers use this teaching method, they can help students to establish the concept of space geometry.