I. Introduction
The problem-based learning (PBL) model is a model that bases learning on providing an authentic, ill-structured problem and incorporating small group work and self-directed studies to force learners to formulate a solution. Research has shown that there are multiple benefits to the use of problem-based learning, as well as questions of its limitations and means of measuring its efficacy [1]–[3]. This article examines the basic elements of problem-based learning, including core characteristics, primary learning goals, and common practices. Additionally, this article analyzes the purported advantages and limitations of problem-based learning and explores some of the research that has been done to test the results of this model. A strategy for further research of this model is proposed. Finally, this article closes with a discussion of the future direction of this model.