Other remark about this being an intro class is that it's introductory in that the issues that we're talking about are kind of first run through.

另一件事关于这个课程,是这些话题的介绍,我们谈论的都是最新的内容。

耶鲁公开课 - 死亡课程节选

However, you only use this when the other person has been directly discussing, speaking on a subject.

但是，只有当他人在直接谈论某一话题时，你才能使用这个句型。

It sounds like 课堂 - SpeakingMax英语口语达人