You have an acre of asphalt. No trees. A portable classroom with a skirt that collects trash. A scripted curriculum that tells you what to say on Tuesday at 10:15. And no bus budget, which means the field trip is the blacktop.
The question is not whether loose parts work. The question is who signs off on a crate of cardboard living behind the portable.
That is the whole problem. Materials are free or nearly free. Permission is not.
What Nicholson actually said, and what he did not
In 1971, Simon Nicholson published an article in a landscape architecture journal titled “How NOT to Cheat Children – The Theory of Loose Parts.” His claim was that inventiveness, creativity, and the possibility of discovery in any environment are directly proportional to the number and kind of variables in it. More variables, more play. Fewer variables, less.
What this means Monday: a bare asphalt yard is not a neutral space. It is a low-variable environment, and Nicholson’s argument predicts what you already see at recess — the same chase game, the same arguments, the same kids standing by the wall.
Two honest caveats before you build anything.
First, the source that preserves and summarizes Nicholson’s paper questions whether loose parts is properly a theory at all. The author writes that more thought, research, and validation would be needed to call it one. That is worth saying out loud to your principal, because if you present loose parts as settled science and someone asks for the studies, you will lose the room.
Second, the same source argues that how loose parts play is facilitated matters enormously — that the human element is underemphasized in most loose parts writing. A pile of crates with no adult attention is a pile of crates. A pile of crates with a teacher who notices what kids are doing with them is a curriculum.
Your inventory is bigger than you think
Nicholson’s definition of loose parts is wider than most people assume. It goes beyond open-ended materials to include phenomena — music, gravity, playing with words, concepts, ideas. The source is explicit about this breadth.
What this means Monday: before you buy or beg for a single item, inventory what the yard already has. Chalk. Water from a spigot. Shadow. Wind. Sound. Language. A painted line that can become a river, a border, a starting gate. None of that requires storage, a custodian’s approval, or a dollar.
The crate of cardboard is the second move, not the first.
The custodian is the gatekeeper, and nobody writes this down
Here is the operational reality that loose parts literature tends to skip. On a school site, the person who decides what lives where overnight is not the principal, not the district facilities office, and not you. It is the custodian who has to mow around it, move it, or explain it to an inspector.
A crate of free cardboard is worthless if no one has agreed where it lives overnight and who moves it. That is not a materials problem. It is a permissions problem, and it has a paper solution.
A one-page agreement, drafted before you collect anything
What follows is a proposed structure, not a documented case. No retrieved source establishes that a school has used an agreement like this. Treat it as a template to adapt and argue about, not a proven form.
The agreement needs to cover, at minimum:
- Storage footprint. Name the exact square footage and location. “Behind the portable” is not a location. “The 4-by-8-foot strip against the north wall of Portable 3, between the downspout and the fence post” is a location.
- Who moves it. Name a person and a time. If the answer is “the kids,” say which kids, in which class period, supervised by whom.
- Weather rules. What comes in before rain. What stays out. What gets tarped. Cardboard that sits through a wet weekend is a pest complaint waiting to happen.
- Prohibited materials. Glass. Treated lumber offcuts. Anything that becomes a projectile. Anything with a nail in it. Anything that a district risk manager will recognize as a hazard on sight.
- A review date. Put a date on the calendar — 90 days out — to look at what is working and what the custodian wants changed. An agreement without a review date is a grievance waiting to be filed.
Get it signed. One page. Both names. A copy in the office.
Storage when there is no shed
Most loose parts guidance assumes a shed or a storage container. Many Title I sites have neither. The following are options to investigate, not recommendations that have been tested here — each depends on your district’s fire code, pest policy, and facilities rules, and you should ask before you build.
- Stacked milk crates under a portable skirt, if the skirt is intact and the space is not already claimed by the HVAC unit.
- A locked rolling bin that can be moved inside at the end of the day.
- A tarped pallet, if the site has a spot that does not block egress and does not sit in a drainage path.
The questions to ask your facilities office: Does this count as an obstruction? Does it create a pest harborage? Does it need to be moved for mowing, and if so, by whom? Get the answers in writing if you can.
The liability conversation, and the one precedent worth citing
District-level fear of injury and liability is a named prohibitive factor in the published literature on loose parts in public schools. A 2022 article in the American Society of Landscape Architects’ The Field describes the dominance of manufactured playground equipment and district liability fear as reasons there are few examples of loose parts and nature play built in public school settings.
What this means Monday: your principal’s hesitation is not personal. It is the documented norm, and you should expect it.
The same article describes Hawthorne Elementary in Seattle — a Title 1 “High Poverty School” in diverse southeast Seattle — as, to the authors’ knowledge, one of the only contemporary public schools to embrace loose parts as an intentional part of its playground. Its existing playground was roughly an acre of treeless asphalt with a small grassy area and aging equipment. That is your yard.
What the article documents is the engagement phase: student design activities, community meetings, and a design team’s three strategies. One of those strategies was navigating fears and unfamiliarity with loose parts play through open dialogue, technical knowledge, and incremental steps. The authors also state plainly that capturing community voice and making ideas safe, affordable, and maintainable in the eyes of the school district were two different things.
What the article does not document: whether the loose parts element was built, sustained, or produced any measurable result. It is part one of a three-part series covering engagement only. Do not cite it as a success story. Cite it as a precedent for the sequence.
The sequence that the precedent suggests
Student and community engagement first. The bureaucratic case second. Reversing that order — pitching the district before families and staff have a stake — is likely to fail on liability grounds alone, because you will be asking a risk manager to approve something no one has asked for.
This is an interpretation of the Hawthorne account, not a finding. But it is the most useful thing in the retrieved literature for a school in your position.
What it costs, and what the cost figures do not cover
There is no retrieved cost figure for a loose-parts-only setup. No source establishes what a crate, a bin, or a tarped pallet costs on a school site. Anyone who gives you a number for that is guessing.
What does exist is cost data for full green schoolyard construction. A schoolyard design firm reports an average construction cost of $16 per square foot across their last dozen elementary green schoolyard projects in the US, with a range of $5 to $25 per square foot. The same firm lists “Loose Parts Imagination Zone – where students build and create” as one element of a green schoolyard, alongside nature playgrounds, learning gardens, and outdoor classrooms.
What this means Monday: if your project is a full schoolyard rebuild, $16 per square foot is a planning number. If your project is a crate of cardboard and a written agreement, that number is irrelevant, and you should not let anyone use it to scare you off a small start.
The firm also notes that design fees can run up to 20% of construction costs and that permitting depends on jurisdiction. Those are real costs on a capital project. They are not costs on a loose parts pilot.
Assessment under a scripted curriculum
You cannot add a rubric. A new rubric is one more thing that will not survive a substitute-teacher day, and it will not survive a pacing guide that already tells you what to teach on Tuesday.
What you can do is capture evidence from what you already collect. This is a proposal, not a tested protocol.
- Photos. You already take them. Date them. Note what the students built and what they said about it.
- Student verbal explanations. Two minutes at the end of a session. Ask what they made and why. Write down two responses verbatim.
- A two-question exit ticket. What did you build? What did you change about it? That is it. Two questions fit on a half-sheet and take four minutes to collect.
Nicholson himself suggested that when considering the impact of curriculum development, educators should ask what children did with loose parts, what they discovered or re-discovered, and whether they carried their ideas back into the community and their family. Those three questions are a better assessment frame than anything you will find in a purchased kit, and they cost nothing.
Try it for six weeks. Report back on what the exit tickets actually showed. That is the documentation this field is missing.
What the evidence does not establish
Be honest with your principal, your custodian, and yourself about the limits here.
No retrieved source documents a written custodial agreement governing outdoor loose parts storage at a public school. No retrieved source provides cost data for low-cost loose parts storage on a site without a shed. No retrieved source establishes academic, behavioral, or social-emotional outcomes of loose parts play in Title I asphalt yards. No retrieved source establishes district policy language on loose parts, natural materials, or student-built structures.
What the evidence does establish: Nicholson’s 1971 claim and its breadth, the contested status of the theory, the importance of facilitation, the documented liability barrier in public schools, and one Title 1 asphalt-yard precedent in its engagement phase.
That is enough to start. It is not enough to promise a result.
Frequently asked questions
Do I need district approval before I put a crate behind the portable?
Ask. The retrieved literature names district-level fear of injury and liability as a prohibitive factor in public school loose parts projects. Getting a written answer — even a no — is faster than finding out after the fact.
What materials should I avoid?
Glass, treated lumber offcuts, anything with exposed fasteners, and anything that becomes a projectile. This is a recommendation, not a sourced rule. Your district’s risk management office will have its own list, and you should ask for it.
Can I do this without any storage at all?
Yes, if you start with the phenomena already present: chalk, water, shadow, sound, language. Nicholson’s definition of loose parts includes these. They require no storage and no custodian agreement.
How do I assess this without adding to my workload?
Use what you already collect. Photos, two minutes of student explanation, a two-question exit ticket. Nicholson’s own evaluation questions — what did children do, what did they discover, did they carry it home — are a free frame.
Is loose parts a research-backed intervention?
The source that preserves Nicholson’s paper questions whether it is properly a theory and calls for more research and validation. Present it as a design principle with contested theoretical status, not a validated intervention.