The public narrative surrounding efforts to improve low-performing K-12 schools in the United States has been notably gloomy. But what is known empirically about whether school improvement works, which policies are most effective, which contexts respond best to intervention, and how long it takes? We meta-analyze 141 estimates from 67 studies of…

We estimate relative achievement effects of the four most commonly adopted elementary mathematics textbooks in the fall of 2008 and fall of 2009 in California. Our findings indicate that one book, Houghton Mifflin's "California Math," is more effective than the other three, raising student achievement by 0.05 to 0.08 student-level…

A state's department of education requested assistance from the Center on Enhancing Early Learning Outcomes (CEELO) in developing a tool to assist with cross walking the Common Core State Standards (CCSS) Math and English Language Arts with their state's Kindergarten 1/2 day program CCSS Pacing Guide Grade Level Standards to transition with the…

In this "FastFacts," a state's Department of Education requests information from the Center on Enhancing Early Learning Outcomes (CEELO) on how the research defines skills in social-emotional development, approaches to learning, and executive function, to inform planned revisions to the early childhood indicators of progress for children…

This article describes kindergarten from the perspective of the whole child. Specifically, it reviews current research on best practices to improve children's math and language arts competencies, memory skills, and the role of kindergarten in beginning science. It also describes the social experiences children have in kindergarten with respect to…