The term "small teaching" refers to an approach that seeks to spark positive change in the classroom through small but powerful modifications to course design and teaching practices. A small teaching approach or activity may take one of three forms: brief classroom or online learning activities, one-time interventions in a course, or small modifications in course design or communication with students. Each chapter introduces a basic concept in cognitive research that has implications for classroom teaching, explains the rationale for offering it within a specific time period in a typical class, and then provides concrete examples of how this intervention has been used or could be used by faculty in a variety of disciplines.