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说到几何知识的教学,就一定会提到对于学生空间观念的培养,但究竟什么是空间观念?《数学课程标准》是这样描述的:空间观念主要包括“能够由实物的形状想象出几何图形,由几何图形想象出实物的形状,进行几何体与其三视图、展开图之间的转化”。说简单一点,就是指物体的大小、形状、各部分之间的位置关系、数量关系等特征在人们头脑中留下的表象,然后能根据提供的信息一下子想象出
When it comes to teaching of geometric knowledge, it is sure to mention the cultivation of the concept of space for students, but what exactly is the concept of space? The standard of mathematics curriculum is described as follows: The concept of space mainly includes: "Can imagine the geometry from the shape of the object Graphics, from the geometry Imagine the physical shape, the geometric body with its three views, expand the conversion between the figure. To put it simply, refers to the object’s size, shape, the location of the relationship between the various parts of the relationship between the number of features left in the minds of the people, and then according to the information provided at once imagined