This document discusses Problem Based Learning (PBL) through the lens of philosopher Karl Popper's views on epistemology and the growth of knowledge. It outlines Popper's rejection of inductivism in favor of a problem-solving approach where tentative solutions to problems are proposed and then subjected to criticism and error elimination, leading to new problems. The document argues that PBL aligns well with Popper's views, as it involves students proposing solutions to presented problems, discussing and criticizing each other's ideas, and developing new problems as their understanding progresses. Key aspects of PBL like self-directed learning, critical thinking, and students taking on decision-making roles also relate to Popper's philosophy.