We examine the fundamental and complex role that time plays in the learning process. We begin by developing a conceptual framework to elucidate the multiple obstacles schools face in converting total time in school into active learning time. We then synthesize the causal research and document a clear positive effect of additional time on student…

Background: Publicly funded four-year-old preschool (or 4K) programs have expanded over the past several decades (Friedman-Krauss et al. 2021). Many high-quality preschool programs lead to gains in academic and social skills for students (Cascio and Schanzenbach 2013; Gormley and Gayer 2005; Weiland and Yoshikawa 2013; Wong et al. 2008),…

In this paper, we examine the fundamental and complex role that time plays in the learning process. We begin by developing a conceptual framework to elucidate the multiple obstacles schools face in converting allocated time into learning time. We then synthesize the causal research and document a clear positive effect of time on student…

Determining the number of hours and days students should spend in school per year to improve student achievement has been a central policy issue, influencing, for example, authorities' attitudes toward disciplining pupil non-attendance and fining parents for the withdrawal of students for vacations. This paper is a review of research studies on…

In 2012, things were not looking good for Grant Beacon Middle School in Denver, Colorado. Enrollment numbers were declining, students were not reaching required academic levels, and the Denver Public Schools district designated the school as on watch. By implementing a plan that emphasized expanded learning opportunities--adding five hours to the…

Research has shown that income-related achievement gaps have been rising at an alarming rate for years. Higher-income families have access to more-enriching schooling environments. Structural inequalities in society, such as race, gender, socioeconomic status, and identity, present an opportunity gap for whites to gain opportunity, while Blacks…

The 2017-18 National Teacher and Principal Survey (NTPS) is a state and nationally representative sample survey of public and private K-12 schools, principals, and teachers in the 50 states and the District of Columbia. NTPS collects data on core topics including teacher and principal preparation, classes taught, school characteristics, and…

Instructional time is a fundamental educational input, yet we have little causal evidence about the effect of longer school days on student achievement. This paper uses a sharp regression discontinuity design to estimate the effects of lengthening the school day for low-performing schools in Florida by exploiting an administrative cutoff for…

This paper examines student learning time as a key educational resource. It presents an overview of how different OECD countries allocate instruction time. It also develops a model to understand the effective use of allocated instruction time and examines how different OECD countries compare on this. The paper confirms the value of sufficient…

Since the 2012/13 school year Florida law has required the 100 lowest performing elementary schools in reading to extend the school day by one hour to provide supplemental reading instruction. In 2014 the law was broadened to include the 300 elementary schools with the lowest reading performance. A previous study of the state's first two cohorts…