This article talks about situated writing lessons and describes how to use this strategy in disciplinary context. The concept of the situated writing lesson is similar to the concept of "strategy lessons" advocated by Nancie Atwell and other whole language teachers who discovered a need for short, context-specific teaching of language conventions. Unlike strategy lessons, though, the situated writing lesson describes examples and counter-examples to help novice writers better understand a convention in a given context and in alternative contexts. (Contains 1 figure.)