Despite the ever-increasing number of online professional development (OPD) programs, relatively few studies have been conducted to examine the efficacy of such programs for teachers and students. This manuscript presents findings from an impact study of OPD courses in fractions, algebraic thinking, and measurement on 79 fifth grade teachers'…

In the following pages, we examine some common methodological challenges in educational technology research and highlight new data collection approaches using examples from the literature and our own work. Given that surveys and questionnaires remain widespread and dominant tools across nearly all studies of educational technology, we first…

Student enrollment in K-12 online learning programs showed a tenfold expansion in the years between 2002 and 2005. Despite increased implementation to fulfill critical local needs, there is very little evidence-based research available to inform education leaders' decisions relating to these initiatives. To address the important question of…