任务分析是教学设计的重要环节,物理概念的学习存在着较明显的层次发展关系,前面知识的学习往往是后面知识学习的必要条件,学习过程是一个由简到繁、由易到难的累积过程. Task analysis is an important part of the instructional design. The study of the physical concepts has obvious development relations at different levels. The learning of the previous knowledge is often the necessary condition for the latter knowledge learning. The learning process is a complex process from simple to complex, from easy to difficult process.