Students engaged in problem-based learning (PBL) units solve ill-structured problems in small groups, and then present arguments in support of their solution. However, middle school students often struggle developing evidence-based arguments (Krajcik et al., "J Learn Sci" 7:313-350, 1998). Using a mixed method design, the researchers examined the…

The literature on the use of problem-based learning in K-12 settings has traditionally focused on gifted and average students. However, mainstreaming is placing increasing numbers of students with special needs in general education classrooms. This case study examined how members of a small group in a mainstreamed seventh grade science class…

Despite the challenges inherent in adopting problem-based learning (PBL) in the middle school classroom, successful PBL teachers are able to find suitable solutions. In this exploratory study we examined the perceptions and practices of five successful middle school PBL teachers regarding the specific difficulties encountered with PBL and the…