Over the course of six years, a diverse group of school districts and charter management organizations in California ran a substantial experiment in implementing the Next Generation Science Standards (NGSS) in elementary and middle grades. WestEd led an extensive evaluation of that effort, the California K-8 NGSS Early Implementers Initiative,…

The Next Generation Science Standards (NGSS) advocate an integrated model of science instruction for middle schools in which the science disciplines are connected rather than separate. This model, used by other countries that are consistently successful in science, has several key benefits, including enhanced student learning and better…

This book explores the challenges of implementing and assessing educational interventions in varied classroom contexts. Included are reflections on the challenges of designing studies for improving the instructional core of schools, guidelines for establishing evidence of interventions' impacts across a wide range of settings, and an assessment of…