Dr. Castrillo obtained a First Class Honours Degree in English Philology from the UNED. She is Professor of German Studies at the Department of Foreign Languages and Linguistics from the Faculty of Philology at the UNED (Deputy Dean for Research and Students and for Academic Mobility 2009-2013). She has recently won the first national prize to the best MOOC (Massive Online Open Course) given by the Spanish Ministry of Education in the first edition of such prize (2013) for the Course "Alemán para hispanohablantes: nociones fundamentales" and she also won a national prize to the best OCW (Open Course Ware) given by the Spanish Ministry of Education (2008). She is author and coauthor of numerous publications on CALL.