Recent studies on professional development programs indicate these programs, when sustained, have a positive impact on student achievement; however, many of these studies have failed to use longitudinal data. The purpose of this study is to understand how one particular instructional practice (STEM PBL) used consistently influences student…

For decades traditional methods of testing have been criticized for saying relatively little reliably about students' ability as well as causing anxiety, which can negatively affect students' recall of learned information. The reform movement with its innovative approaches focusing on learner-centered education perceives assessment as an…