In this article the authors describe an Integrative Science Technology Engineering and Mathematics (STEM) Education Design-Based Learning (I-STEM ED DBL) activity that invites students to delve into the science, technology, and engineering related to the production of Ötzi's copper axe and to speculate about the circumstances surrounding his…

This paper examines the relation between children's summer activities before fourth through sixth grade and their vocabulary knowledge in fifth grade and at age fifteen using the NICHD SECCYD dataset (N = 1,009). We used OLS regression and propensity score analyses to understand how children's summer reading, library visits, participation in…

This study of 952 fifth and sixth graders in Washington, DC, and Alexandria, Virginia, found that students who were offered the "Higher Achievement" program had higher test scores in mathematical problem solving and were more likely to be admitted to and attend private competitive high schools. "Higher Achievement" is a…