针对高校专业课程教学中存在的问题，提出“知识分级”的教学方法，以自上而下地方式开展课堂教学，帮助学生尽快熟悉课程知识体系，激发其内生学习动力。以核反应堆物理类课程为例介绍知识分级的思路及方法，结合新的教学方法和理念，可以达到良好的教学效果。
Aim at the problems existing in the teaching of professional courses in universities, a method of knowledge grading was proposed. Top-down teaching approach could help students familiarize themselves with the knowledge system, stimulate their inner learning motivation. Taking nuclear reactor physics course as an example, the idea and method of knowledge grading were introduced. Combined with new teaching methods and ideas, good teaching results could be achieved.
