Many writing process researchers have shown that students make only minor mechanical changes instead of revising their documents significantly. Effective revision pedagogy must address this problem by encouraging revision of content, arrangement, and style, and by directing student attention to all levels of the document, from the overall essay down to individual words. Applying five revision principles to the macro-and micro-levels of documents can provide a pedagogical program for teaching revision in technical writing: (1) amount and kind of detail, (2) appropriate emphasis, (3) logical progression, (4) stylistic appropriateness, and (5) mechanical accuracy. Since only the last of these is concerned with minor editorial changes, introducing students to these principles leads them to see revision as a more complex task. Techniques to help students practice these five principles and develop effective revision procedures include revision checklists, revision sessions on drafts-in-progress, and peer review. (A sample revision checklist is included.) (HTH)