Areal data have been used to good effect in a wide range of sociological research. One of the most persistent problems associated with this type of data, however, is the need to combine data sets with incongruous boundaries. To help address this problem, we introduce a new method for identifying common geographies. We show that identifying common…

Evolutionary trees are key tools for modern biology and are commonly portrayed in textbooks to promote learning about biological evolution. However, many people have difficulty in understanding what evolutionary trees are meant to portray. In fact, some ideas that current professional biologists depict with evolutionary trees are neither clearly…

Barriers to the identification of gifted students from traditionally underserved groups have been well documented. Although contemporary definitions of giftedness give heed to both performance and potential, the literature provides little concrete direction for how "potential" can be recognized, particularly in underperforming students who have…

This guide provides step-by-step instructions on understanding, planning, and engaging in the coordination of community resources that support the transition of youth with disabilities into adult life. Designed for use at the federal, state, and local levels, this document provides numerous practical tools and resources for initiating a resource…