Every so often, the four-day school week makes national news, and the tone is always the same: somewhere between a curiosity and an emergency. A district somewhere has cut Fridays. Experts are concerned. Parents are scrambling. What will become of the children?
I read these stories from our family farm outside of Lemmon, South Dakota, where the school week has been four days long since 2004. My husband was in one of the first classes to graduate under it. The seniors who walked across the stage this spring were born into it. In Lemmon, the four-day week is not a trend, an experiment, or a crisis. It is older than the iPhone. It is simply what school is.
I want to be careful here, because I wear more than one hat. I am a parent in this town. I am a community member who sees what Fridays actually look like on the ground. I am also part of the education research and policy world, which means I have read the studies themselves rather than the headlines about them, and I know the evidence is more complicated than either the boosters or the alarmists want it to be. This piece is my attempt to hold all of that at once. I believe the four-day week has become a fight about something other than what it claims to be, and the places that have lived with it the longest are barely in the conversation.
The map nobody looks at
Let’s start with where the four-day week actually is. More than 2,100 public schools across 26 states now run on four-day schedules, and about ninety percent of those districts are rural, overwhelmingly west of the Mississippi. In South Dakota, roughly a quarter of our school districts have adopted it. Custer, SD went first in 1995, over thirty years ago. This is not a new idea arriving in rural America. It is a rural institution, built over decades, that has recently begun to migrate toward suburbs and small cities. That migration, I would argue, marked the start of the fighting.
Missouri’s legislature passed a law in 2024 requiring larger districts to win a public vote before adopting a four-day calendar, and it offered money to districts willing to return to a five-day calendar. Notice what the law implies: small rural districts can be trusted to make this call for themselves, while bigger ones cannot, or should not, or at least must be slowed down. When two Missouri districts put the question to voters in late 2025, both communities said yes. The schedule keeps winning where people actually live with it, and it keeps alarming people who do not.
I do not say that to dismiss the concern. I say it to locate the concern. The four-day week was a quiet, local, and unremarkable fact of Plains life for a generation. It became a national controversy only when it stopped being safely rural.
What the research actually says
Here is where I have to put on the researcher's hat and be honest, including about the things that run counter to my town’s experience.
The best evidence we have, including a multi-state analysis of 11 years of NWEA test data by Emily Morton, Paul Thompson, and Megan Kuhfeld, finds that students in four-day districts learn somewhat less, on average, than comparable students in five-day districts. The losses are not catastrophic. The estimates translate to modest declines, the kind of effect that is invisible in any one child but real across a population. RAND’s study of four-day districts put it memorably: students in four-day districts “fell behind a little every year.”
The averages, however, hide the two findings I think matter most.
First, the losses are larger in non-rural districts. The schedule seems to cost suburban and town kids more than it costs rural kids, and that finding is worth sitting with because it suggests the policy’s effects depend on the life that surrounds the school, not just on the school itself.
Second, and most practically, instructional time is the hinge. Districts that compress the week but protect their hours, keeping roughly 32 or more of them across those four days, show no statistically significant achievement difference from their five-day peers. Districts that quietly let total hours erode below 30 see the steepest losses. The four-day week, in other words, is not one policy. It is a family of policies wearing the same name, and the version that guards its hours looks very different in the data from the version that treats the schedule as a stealth budget cut.
The rest of the evidence ledger is soberingly modest in both directions. The money districts hoped to save mostly does not materialize, since savings average around two percent of budgets. The teacher-retention miracle rarely materializes either. Turnover shifts by a point or three, which is real but small, though superintendents in hard-to-staff places will tell you the schedule is one of the only recruiting cards they hold, and I believe them. Emily Morton’s work on Oklahoma high schools found attendance largely unchanged and, interestingly, less bullying, alongside genuine open questions about what teenagers do on an unstructured fifth day and what that day means for families who count on school meals.
The honest summary, then, is that the four-day week carries a modest academic cost on average, offers a smaller financial benefit than advertised, and has effects that vary widely by implementation and place. That is not a verdict. It is a description of a trade-off, and communities are allowed to make trade-offs.
Why the town and the literature can both be right
This is the part I never see in the coverage, and it is the part I live.
A Friday in Lemmon is not an empty day. Kids here work on ranches, in shops, and for neighbors. Families drive two hours or more for orthodontists, specialists, and errands that a suburban family folds into a Tuesday afternoon. Sports and activities in a place this remote mean travel that used to swallow Fridays anyway, so the four-day week did not take kids out of class so much as stop pretending they were in it. Teachers use the fifth day for the planning and paperwork that elsewhere gets crammed into evenings. The schedule did not subtract a day of childhood. It rearranged the week to fit the actual shape of life out here.
Now imagine the same policy landing in a suburb of St. Louis. On the fifth day, there is neither a workday at the ranch/farm nor a trip to the orthodontist 150 miles away. It is, for many families, a childcare emergency with no grandparent down the road and no obvious answer. The day has a different price because the community has a different structure. Of course, the research finds different effects in different places. Time is not fungible. An hour of a child’s week means something different in Perkins County, SD than it does in a commuter suburb, and a policy that moves hours around will succeed or fail on what the surrounding life can absorb.
This is what I mean when I say the four-day week has become a proxy fight. The argument presents itself as being about test scores, but the studies’ modest effect sizes cannot carry the emotional weight of the debate. What is actually being contested is something older: whether school’s job is instruction or supervision, whose time the school calendar belongs to, and, quietly, beneath everything, whether rural communities can be trusted to know what is good for their own kids. When a legislature decides that a town of 1,200 may choose its calendar but a city of 120,000 must be protected from the same choice, that is not a reading of the achievement literature. That is a theory about who gets to decide.
Holding both
So what do I do with all this, as a parent whose daughter’s education runs through a four-day school and as a researcher who has read every study I just summarized?
I refuse the comfort of either camp. I will not tell you the research is wrong because my community is happy. Twenty-two years of local contentment is not a counterfactual, and I have spent too much of my life with data to pretend otherwise. But I also will not let a 0.07 standard deviation carry more meaning than it holds, or let averages computed across six states overrule what I can see from my own kitchen window about what Fridays give back to families here.
What I would actually ask of any four-day community, mine included, is a short list. Guard the hours, because the research is unusually clear that this is the hinge, and it is the easiest thing to let slip year over year. Know what your kids are doing on the fifth day, and be honest about which kids have a ranch, a job, or a grandparent waiting for them and which kids have an empty house. Watch your own data with open eyes, because loving a schedule is not a reason to stop measuring it. And if the numbers ever turn on us, be the kind of community that can say so out loud.
I can tell you what that list looks like when it stops being a list.
This Friday, my daughter will spend her morning outside with her dad, harvesting. She has reached the age where her help is no longer symbolic. The work goes more slowly without her; everyone knows it, and she knows it best of all. There is no rubric for what happens to a child in the first season her hands become necessary. I’ve spent my career considering and measuring what children learn, and I can tell you that what she is learning in that field will never appear on any assessment she takes. She is learning how to be counted on, how to work beside someone she loves in the cold without complaint, and how a family holds itself together through a season. Those lessons will appear in everything else she does, for the rest of her life.
In the afternoon, she will sit down at the kitchen table and log on with her math tutor, a wonderful one who reaches her through a screen from our state capital, Pierre, SD, which is otherwise a three-hour drive away. I want to name it plainly for what it is: a privilege. A reliable connection, a tutor’s fee, and parents working from home to arrange it all are not a given in every household. After the tutoring, she will read (if listening to her parents), or she will simply rest and relax, because a childhood should have some hours in it that no one has claimed. And when the sunlight goes, we will do what this whole town does on a fall Friday night: head to the football game, where the retired teachers sit near the students they once taught, where my daughter will run the fence line with her friends, and where, for a few hours, it is very hard to believe that anyone fell behind at all.
That is one Friday. The morning holds work that matters. The afternoon holds the exact academic attention the researchers worry the schedule takes away, delivered one child at a time, but only to the children whose families can arrange it. The evening holds the community the schedule was built to serve, gathered in one place. I am not claiming that every child in every four-day town gets that Friday, and that is precisely the question I want every four-day community to keep asking itself. I am telling you what the fifth day holds when a family and a town decide to fill it on purpose.
What Lemmon knows
Here is what twenty-two years teaches you that no study can: a school schedule is not an intervention dropped onto a community. It becomes the community. Lemmon’s Fridays are now load-bearing, woven into how families work, how teachers plan, and how the town moves through a week. The teachers have championed it. The community has built around it. You could not remove it now without breaking things the achievement literature has no column for.
That does not make Lemmon right and the researchers wrong. It makes Lemmon evidence of a kind the field is bad at counting. The four-day week debate would be smarter, and kinder, if it spent less time asking whether the schedule is good or bad in the abstract and more time asking the question every town on the Plains answered long ago without waiting for permission: what shape of week fits the life we actually live, and what will we do to make sure our kids lose nothing by it?
My husband graduated into that question in 2005. Our daughter is growing up inside the answer. She is in the field on Friday mornings, at the kitchen table with her tutor in the afternoons, and under the lights with the whole town at night. Twenty-two years in, the least interesting thing about the four-day week is the argument. The most interesting thing is the week itself.
Sources and further reading: the multi-state NWEA MAP analysis in Economics of Education Review (Morton, Thompson, and Kuhfeld, 2024); RAND’s six-state study of four-day districts; Emily Morton’s work on Oklahoma high schools in Educational Evaluation and Policy Analysis*; NWEA’s research summaries on adoption and instructional-time thresholds; reporting on South Dakota adoption from the Mitchell Republic and on Missouri’s 2024 law from the Missouri Independent.
Key question: do football teams in 4-day weeks schools do better than teams in 5-day week schools?