Four-day school week schedules are being adopted with increasing frequency, particularly in rural areas. In this paper, we consider the academic implications of students in Oregon attending a four-day school week for the first time when they enter high school. We find 11th grade math achievement in 0.09 standard deviations lower among four-day…

There is a growing body of research that suggests the first year of high school is a critical transition point for students. It also finds course-taking and successful completion of those courses in 9th grade to be valuable predictors of students' success in high school. The Every Student Succeeds Act (ESSA) provides states an opportunity to…