Abstract
Patent specifications have heuristic benefits as structural models for teaching technical description. Once taught how to read patents, students can use the specification's four main sections for writing assignments, structurally adapt ing a single topic-an invention-to different rhetorical contexts: (1) Back ground of the Invention describes the context into which the invention fits; (2) Summary of the Invention explains what makes the invention special; (3) Brief Description of the Drawings focuses on pictorial description; (4) Best Mode of Carrying Out the Invention explains how to make the invention work. Parts 1 and 2 correspond to Aristotelian definition, while part 3 can work as physical description and part 4 as functional description or even performance instructions.