In this research, the scale development study of the perception of learning in the discussion environments was done in order to present the perception of learning of the students who were in a learning process asynchronous online. In the scope of this scale development study, firstly, the perception of learning was identified, secondly the scale item pool was developed by scanning the existing literary field and the items in the item pool were re-edited by expert opinion, and finally the tool of candidate measuring was stated out. Afterwards, in the discussion environments developed by researchers, the applicability of the scale was attained as 7.96 and its reliability was attained as 0.93. Furthermore, a rubric-type scale for the aim of convergent validity checked the message quality of the messages in the discussion environments, and it was found out that there was a 0.52 type of relation between the message quality and the perception of learning levels. (C) 2013 The Authors. Published by Elsevier Ltd.