论文部分内容阅读
几何,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、抽象思维与形象思维有机地结合起来,充分展现了问题的本质。几何图形可以帮助学生开启智慧的大门,突破数学理解上的难点。教学中,培养学生的几何直观能力的有效方法就是要让图形“说话”。一、数线——感知数形结合数线实际上是数轴的雏形,利用数线既可以体会数的顺序,比较数的大小,而且还可
Geometry, by virtue of the intuitive features of graphics, combines abstract mathematical language with intuitive graphic language, abstract thinking and image thinking organically to fully reveal the essence of the problem. Geometry can help students open the door to wisdom, breaking the mathematical understanding of the difficulties. In teaching, an effective way to develop the students’ ability of geometric intuition is to make graphics “speaking ”. First, the number of lines - the number of perceived shape with the number of lines is actually the prototype of the number of axes, the number of lines can be realized using the number of the order, the number of the number of comparison, but also