We studied how the distal policy mechanisms of curricular aims and objectives articulated in official curriculum documents influenced classroom instruction, and the factors that were associated with the enactment of those curricular aims and objectives. The study was set in the U.S. context, where there is an ambitious effort to transform…

This article describes the findings of a study involving a professional development program that prepared middle school teachers to integrate content on the earliest eras of world history and world geography. In particular, this study focused on participants' (n = 37) use of geographic resources to integrate geography and history and to encourage…

In an ongoing study, RAND researchers are evaluating the effectiveness of Carnegie Learning's Cognitive Tutor Algebra I (CTAI) curriculum, a technology-based curriculum that combines classroom instruction with individualized instruction by a computer-based tutor. While the effectiveness of the curriculum in raising student achievement is the main…

We investigate how students connect explanations and arguments from evidence about plant growth and metabolism--two key practices described by the "Next Generation Science Standards". This study reports analyses of interviews with 22 middle and high school students postinstruction, focusing on how their sense-making strategies led them…