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《数学课程标准(2011年版)》指出:“空间观念主要是指根据物体特征抽象出几何图形,根据几何图形想象出所描述的实际物体;想象出物体的方位和相互之间的位置关系;描述图形的运动和变化;依据语言的描述画出图形等。”这就要求教师在教学中要充分挖掘各种条件,运用各种教学手段,引导学生通过观察、演示、动手操作等活动形成几何图形的表象。同
The Mathematical Curriculum Standard (2011 Edition) states: “The concept of space mainly refers to the abstraction of geometrical figures according to the characteristics of objects, the visualization of the actual objects according to the geometrical figures, the orientation of the objects and their positional relationship with each other, the description of Graphics, movements and changes; according to the language of the description to draw graphics, etc. ”This requires teachers in teaching to fully tap the conditions, the use of various teaching methods to guide students through observation, demonstration, hands-on activities such as the formation of geometry Graphic representation. with