Derick Leony received his B.Sc. (2006) in Computer Science and his M.Sc. (2007) in Telecommunications from Galileo University, Guatemala, and he obtained his M.Sc. (2010) in Telematic Engineering from University Carlos III of Madrid. Currently, he is a PhD student and a teaching assistant in the Department of Telematic Engineering at University Carlos III of Madrid. His research interests lie in the analysis of activity patterns in learning environments and their relationship with students’ affective states.