科学的求真性决定了观察在科学探究中的核心地位,教师应尽可能地提供足够的材料、信息及空间,引导学生经历一个观察发现和获得知识的过程,从而建立各种概念。但有时因观察周期较长,观察对象甚小,观察范围较广,观察角度多变等因素,科学观察受到很大局限。信息技术的巧用可以把长期点段的观察过程以短时连续 Scientific truth determines the central role of observation in scientific inquiry. Teachers should provide as much material, information and space as possible to guide students through a process of observing and acquiring knowledge so as to establish various concepts. But sometimes because of the observation period is longer, the observation object is very small, the scope of observation is wide, the observation angle changes and other factors, the scientific observation is very limited. The clever use of information technology can be long-term point of the observation process in a short time continuous