While the social interaction in collaborative learning contributes to knowledge construction, its exact mechanisms are not yet fully understood. In this paper we present the results of a survey that sheds some light on one aspect of this issue: the students’ perspectives on team formation in collaborative learning environments. We surveyed a class of undergraduate students studying in a blended learning environment using teambased lab assignments. We solicited the students’ perspectives on four different computer-supported team formation approaches, and we asked about their views on different factors shaping their team formation preferences. We hope that the results of our survey will help researchers and learning system designers to better understand the perspective of students and the reasons why students generally prefer team self-formation over instructor or system formed teams.