* Cold calling is advantageous primarily because it dramatically increases the extent to which students are required (or at any rate [[nudge]]d)
into paying attention and actively thinking about the material being covered in class. With a method such as [[voluntary participation]], only the students who choose to participate ''and'' think they have a shot at getting the answers will participate. On the other hand, with cold calling, all students, knowing that they can be called upon, are listening closely and working out the answers.
* Cold calling might also help [[break the ice]] in the classroom and make students more comfortable interacting with each other and the instructor. If executed well, people can feel more confident.
* Cold calling is a great way for everybody to get to know each other, connecting name, face, voice, and some features of their answers.