problem-based learning classroom is an approach to higher education that has the following characteristics. Small groups of students discuss a problem guided by a tutor. Based on the discussion about the problem, students generate learning goals for subsequent self-directed learning. As such, students have a choice in deciding which learning goals they would pursue in order to adequately deal with the problem. After a period of self-directed learning, students share what they have learned about the topic and test whether their new understanding of the problem is now more accurate and elaborate than before. Once students are satisfied with their learning outcomes, they engage with a new problem and the cycle starts all over again (Hmelo-Silver 2004; Schmidt 1993)..