This study sought to examine the impact of teachers' participation in an extended period of embedded professional development (PD) emphasizing teachers' use of assessment for learning practices (AFL) in extended problem based units of instruction within a comprehensive AFL framework. The extended and comprehensive approach of using both course…

Problem-based learning (PBL) is one approach to teaching science that supports the notion that students construct knowledge within contextual settings, and that critical thinking and application are best fostered within these realistic contexts. In other words, learning activities are best applied when they are authentic or embedded in real-life…