Models are central to the practice and teaching of science. Yet people often fail to grasp how scientific models explain their observations of the world. Realizing the explanatory power of a model may require aligning its relational structure to that of the observable phenomena. The present research tested whether "relational…

English learners (ELs) are the fastest growing population of learners in the United States; however, despite the growing numbers of ELs, their representation in gifted identification and programming continues to lag behind not only traditional populations of learners from advantaged communities, but also other underserved populations of learners.…

In this thesis, I present three related papers that collectively investigate the instructional supports on screen and in the media viewing context that influenced English and heritage language vocabulary knowledge in DLLs. In study 1, I examine how specific pedagogical approaches used in educational media might benefit DLLs. In study 2, I…