(from Harvard University The Christensen Center for Teaching & Learning). The Art of Cold Calling. If you are looking to better engage students in the classroom, cold calling can be a great way to spark discussion and foster an inclusionary environment. Yes, this method can be used to set the tone for class expectations, but it isn’t about shaming the unprepared. Done right, cold calling can serve up meaningful dialogue while also allowing a variety of students a chance to contribute, whether it’s by offering a deserving nod to an oft-prepared student or highlighting another’s expertise and background. Unsure how to properly use cold calling in your classroom? Let’s explore the why, who, and how.