I propose that we think about what a paragraph is by considering its "function," what it does in a piece of writing, whether in a popular novel, a newspaper article, an e-mail, a business report, or a lofty piece of literary criticism. We might think about a paragraph as a "rhetorical dwelling."

Designed to help teachers find an effective approach in teaching expository writing, this guide divides expository writing into five main types: definition/classification, comparison/contrast, thesis/proof, problem/solution, and inference (drawing conclusions). Five different starter techniques are presented with each of the five main types of…