要认识几何形体,必须理解几何形体的本质属性,形成正确、清晰的几何概念。几何概念是人们在长期的生活、生产实践中,通过对大量的现实世界的空间形式进行高度的抽象概括后得到的。所以我们要重视引导学生进行观察等感知活动,使学生形成几何形体的表象,得到正确清晰的几何概念,在培养学生初步空间观念的过程中,应注意两个问题。 To understand the geometry, you must understand the essential properties of the geometry to form a correct, clear geometric concept. Geometric concept is that people in the long-term life, production practice, through a large number of real-world spatial form a high degree of abstract summary obtained. Therefore, we should pay attention to guiding students to observe and perceive activities, so as to enable students to form the appearance of geometric shapes and get the correct and clear geometric concepts. In the course of cultivating students’ initial spatial concepts, two problems should be paid attention to.