数学的理解需要直观的观察、视觉的感知.特别是几何图形的性质,复杂的计算过程、函数的动态变化过程、几何证明的直观背景等,若能运用信息技术来直观呈现,使其可视化,将会有助于学生理解,促进对形与数的联系的认识.但是,数学学科研究的对象是抽象的.一般地说,数学虽然需要直观 Mathematical understanding needs visual observation and visual perception, especially the nature of geometric figures, complex calculation processes, the dynamic process of functions, the intuitive background of geometric proof, etc. If we can use information technology to visualize, visualize, Will help students to understand and promote the understanding of the relationship between the form and the number of However, the subject of mathematical research is abstract, generally speaking, mathematics although the need for intuitive