This paper reports on the findings in the first phase of a design-based research project as part of a large-scale intervention study in Dutch kindergartens. The project aims at enhancing differentiated instruction and evaluating its effects on children's development, in particular high-ability children. This study investigates relevant…

The focus of this research is to evaluate the relationship between advanced high school science courses and college outcomes, with a focus on the benefit of Advanced Placement Program® (AP®) participation and performance in comparison to other high school options (e.g., dual enrollment, honors, and regular science high school courses). Although…

The purpose of this article was to explore student participation patterns in online discussion boards related to their characteristics and question types. The characteristics of students enrolled in an online course and the impact of types of discussion questions on student posts were examined. During the 16 weeks of a course, the participation…