Sara García-Sastre holds a ‬PhD ‬degree ‬in ‬Pedagogy from the University of Valladolid, Spain, obtained in 2015. She is an Assistant Professor in the Department of Pedagogy in the Faculty of Education and Social Work at the same University. Her main research interests include: initial teacher training; Technology Enhanced Learning (TEL): Computer-Supported Collaborative Learning; Massive Open Online Courses (MOOC); Learning Design‬‬‬‬‬.