几何直观是利用图形洞察问题本质的一种方式,既有形象思维的特点,又有抽象思维的特点。凭借图形的直观性特点,将抽象的数学语言与直观的图形语言有机地结合起来、抽象思维同形象思维结合起来,可充分展现问题的本质。用好几何直观能够帮助学生打开思维的大门,突破数学理解上的难点。无论是概念、性 Geometrical intuition is a way to use the figure to understand the essence of the problem, both the characteristics of image thinking and the characteristics of abstract thinking. With the intuitive features of graphics, the combination of abstract mathematical language and intuitive graphical language, abstract thinking combined with the image of thinking, can fully demonstrate the nature of the problem. With good geometry can help students open the door to thinking, breaking the difficulties in mathematical understanding. Whether it is concept, sex