In spring 2020, the coronavirus disease 2019 (COVID-19) pandemic led to an unprecedented and sweeping shift in the landscape of public schooling in the United States. Beginning in March, schools across the country closed their doors and adopted remote learning supports that varied in degree and type. In May 2020, researchers from the RAND…

This monograph presents the findings of a multiyear study of the effectiveness of reform-oriented mathematics and science instruction. It builds on an earlier RAND study, called the Mosaic project, which found "a weak but positive relationship" between reform practices and student achievement (see Klein, Hamilton, McCaffrey, Stecher,…

Since 2001-2002, standards-based accountability (SBA) provisions of the No Child Left Behind Act of 2001 (NCLB) have shaped the work of public school teachers and administrators in the United States. NCLB requires each state to develop content and achievement standards in several subjects, administer tests to measure students' progress toward…

In 2002, the RAND Corporation launched a project to understand how educators are responding to the new accountability requirements in California, Georgia, and Pennsylvania--three states that represent a range of approaches, regions, and student populations. The researchers aimed to identify the factors that enhance the implementation of SBA…