原子核外电子运动是微观的、高速的和无规则的。由于在学习过程中学生无法观察其运动状态,因而也就难以形成概念。对传统教育方式、教育媒体来说,教师即使想采用建构主义的学习方法也无能为力,有的教师也就只能是满堂灌了。在教学中我们利用FlashMX制作了教学软件——模拟氢原子核外电子运动及照片叠加形成电子云图。在此模拟环境中 Extraterrestrial electron movements are microscopic, high-speed and irregular. Because students can not observe the state of their movement during the learning process, it is difficult to form a concept. For traditional education methods and educational media, teachers can not do anything even if they want to adopt constructivist learning methods. Some teachers can only do so. In teaching we made use of FlashMX teaching software - Simulation of hydrogen atoms outside the nuclear motion and photo superimposed to form an electronic cloud map. In this simulation environment