Research has focused on students' difficulties understanding phenomena in which agency is distributed across actors whose individual-level behaviors converge to result in collective outcomes. Building on Levy and Wilensky (2008), this study identified features of distributed causality students understand and that may offer affordances for…

Outdoor education programs have been shown to have a positive effect on the educational, physical and emotional development of youth. They are increasingly being used to foster a sense of community in schools and to provide students with learning opportunities related to the environment. This article describes an integrated outdoor education…

Schools need evidence-based guidance on which measures in mathematics, administered under what particular set of conditions (e.g., time of year), provide the most useful prediction. The purpose of this study was to examine decision accuracy among commonly used screening measures with a priority toward identifying the least costly screening…

This study explored the use of an online mathematics tutoring system in eight fourth grade classrooms in two Massachusetts communities--a small rural city with a low 2010 Adequate Yearly Progress (AYP) math performance rating and a small suburban district with a high 2010 AYP math performance rating. 165 fourth graders completed 11 modules…

Third- through fifth-grade students participating in a classroom teaching experiment investigating the impact of an Early Algebra Learning Progression completed pre- and post-assessments documenting their abilities to represent or describe unknown quantities. We found that after a sustained early algebra intervention, students grew in their…

This study addressed whether prior successes with educational interventions grounded in the theory of successful intelligence could be replicated on a larger scale as the primary basis for instruction in language arts, mathematics, and science. A total of 7,702 4th-grade students in the United States, drawn from 223 elementary school classrooms in…

Third- through fifth-grade students participating in a classroom teaching experiment investigating the impact of an Early Algebra Learning Progression completed pre- and post-assessment items addressing their abilities to engage in functional thinking. We found that after a sustained early algebra intervention, students grew in their abilities to…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

This article describes the use of "4MALITY", a web-based mathematics tutoring system, with 125 Massachusetts fourth graders and their teachers in three rural school districts during the 2007-2008 school year. At the outset, "4MALITY" was envisioned as a stand-alone web based system providing tutorial support to individual…

The National Center for Accessible Media has developed a technology and protocol for inserting extended, enhanced descriptions of visually based concepts into artificially paused digital video. These "eDescriptions" describe material not fully explained by a narrator and provide analogies and explanation specifically designed for…

This project involves the collaboration of researchers with 24 teachers in a study aimed at investigating and improving the vocabulary knowledge and reading comprehension of 4th and 5th grade students for whom English is a second language. Cross sectional and longitudinal data were collected on various aspects of vocabulary knowledge, vocabulary…