Four-day weeks are becoming more common in school districts, particularly in rural areas of the U.S. Many districts are finding students and families like the shorter school weeks. In fact, in a survey of schools with four-day week policies, 85 percent of parents and 95 percent of students said they would choose to remain on the schedule rather than switch back to a five-day week. While these shorter weeks are popular with stakeholders, might there be unintended consequences of four-day school weeks? Are there certain ways to implement the schedule that lead to better outcomes for students?