This study, which was conducted in the department of "Secondary Science and Mathematics Education" in the Faculty of Education at Hacettepe University in spring semester of 212-2013 and 2013-2014 academic years, aims to explore attitudes of 30 pre-service teachers towards micro teaching sessions. This study reports a micro teaching practice done with 30 student teachers attending the biology education department of Hacettepe University during the spring semesters of the academic years of 2012-2013 and 2013-2014. The goal of the micro teaching is to provide the student teachers with the opportunity to practice the teaching skills and to evaluate themselves concerning these skills before their future roles as teachers. In the study, the participants were asked to comment on the micro teaching practice in terms of positive and negative sides of it, its difficulty, and the gains of it. The data of the study were collected through a form with eleven open-ended items and were analyzed through descriptive analysis method. The data were discussed based on quotations from the reports of the participants. The findings obtained showed that the micro teaching practice is useful for student teachers to reduce their deficiency in teaching skills and to have much more positive attitudes towards their future profession.