It sounds like you're discussing the lectures and the readings and you're really not.The section discussions are a complement to the lectures.

因为这听上去想是你们要讨论我讲的课和那些阅读材料,但却不是那样，讨论课是对我讲课的一个补充。

耶鲁公开课 - 旧约导论课程节选