Worried about the large number of young children from low-income families entering school in their communities, many city and county leaders wonder whether quality preschool might help close the school readiness gap. Longitudinal studies of model programs that began decades ago show that these programs improved not only these children's school…

The Massachusetts Expanded Learning Time (ELT) initiative was established in 2005 with planning grants that allowed a limited number of schools to explore a redesign of their respective schedules and add time to their day or year. Participating schools are required to expand learning time by at least 300 hours per academic year to improve student…