“…As an educational method, PBL has been gaining ground and many studies point out several advantages: student satisfaction [28], ability to integrate new information into previous knowledge [29], a greater ability to transfer concepts to new problems [30], better results [31], development of various general skills [32], increasing student attitudes and interest in a STEM career [33], providing more opportunities for students' collaboration, and, thus, promoting higher-order thinking skills [5] and enhancing student achievement [34], among others. In broader studies, literature reviews and meta-analyses reported positive reactions to the methodology [35], gains in attitudes [36], and retention of knowledge for longer periods of time compared to the traditional methodology [37], increasing articulation compared to other active learning strategies [20], but not always better academic results [38]. In a recent systematic bibliometric review, Hallinger [20] analyzed about 12,000 Scopus-index documents published for 45 years (1974-2019), and concluded that there was a clear growth in PBL-related documents (57%) in the last decade (2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019), showing that there is greater academic interest in this subject.…”