Insects offer a vast array of teaching opportunities for precollege students. Here we address the basics teachers need in order to use insects successfully in their curricula. We identify exemplary resources in the printed North American literature and point out potentially productive places for teachers and students to search for ideas and materials. We review the roles of entomology in the educational framework, highlight favorite classroom arthropods and less well-known examples, and guide readers to entomological resources. Tips to help teachers identify, rear, and maintain classroom insects and find equipment and supplies are included. The review concludes with a plea for greater classroom and curricular involvement by those in the entomological profession.