“…Various interpretations that deviate from the original PBL approach to the curriculum have emerged and many different modes of PBL can be distinguished (Savin-Baden, 2004;Schmidt, Van der Molen, Te Winkel, & Wijnen, 2009;Taylor & Miflin, 2008). What counts as pure or as hybrid PBL (Hung, 2011;Savin-Baden, 2000; and the development of new models like the "one-day-one-problem" model of PBL (Rotgans, O'Grady, & Alwis, 2011) complicate the discussion about what PBL really is. In spite of the fact that different interpretations of PBL exist, several common factors can be identified (Dolmans, De Grave, Wolfhagen, & Van der Vleuten, 2005).…”