The aim of this study is to understand students' experiences in online and face-to-face discussion and compare their perceptions towards these two environments.Students from two undergraduate classes(n=208)were surveyed by questionnaires and 30 students were interviewed.The analyses centered around five major aspects-learning,affection,reading and writing skills,critical thinking skills,and efficacy.The results show that the student perceived more positively towards face-to-face discussion than online discussion in all but the reading and writing aspect.The interview data revealed the advantages and disadvantages of each discussion method.