This paper examines the effectiveness of problem-based learning. The presentation of the paper is divided into four parts. In the introduction, features and characteristics of problem-based learning are presented. In the second part, main findings of a meta-analytic (Dochy, Segers, Van den Bossche, & Gijbels, 2003) and two review papers (Baker, 2000; Hmelo-Silver, 2004) are highlighted. In part three, referring to empirical and other studies, advantages and challenges of problem-based learning are elicited. Finally, in the concluding session, some other issues such as group size and academic achievement are discussed.
INTRODUCTION
REVIEW AND EFFICACY STUDIES
ADVANTAGES AND CHALLENGES
CONCLUDING REMARKS
REFERENCES