How to set up a Montessori shelf (and what to leave off)

Put out one thing per job, not eight versions of the same job. Six to eight things on an open shelf your child can reach, everything else in a cupboard.

One more thing before the list. The shelves that come up when you search this were styled for a camera. Everything matched, everything lined up, nothing touched. A working shelf at 6pm looks nothing like them, and if yours does, something has gone wrong.

One item per job

Most shelves I see have plenty on them and still go cold, because everything on them does the same job. Six puzzles is still just puzzles, and a child who is not in a puzzle mood that morning has nothing to do. So think in jobs. These are the ones I try to cover, with the plainest example of each.

• Something for the hands. Threading, pinching, screwing a lid on. Slow, fiddly work, and the grip it builds is the one a pencil needs at four. The fine motor shelf is mostly this; a lacing toy is the simplest version.
• Something for the whole body. Carrying, balancing, climbing. It does not have to sit on the shelf, but it needs to be in the room. A low beam from the gross motor shelf, or a laundry basket with two heavy books in it.
• Something to name and talk about. A basket of five real objects, a set of picture cards, a story board. Anything that gives the two of you something to point at. That is what the language and literacy shelf is for.
• Something to sort or count. A clear right answer the child can check alone: pegs that fit one hole, rings that only stack one way, beads to slide. The math and logic shelf runs on this.
• Something real from the household. A small brush and dustpan, a jug that pours, a cloth. The child knows it is real, which is why it holds. That is the whole of the practical life shelf.
• Something for the senses, especially under two. A rain stick, a texture board, a box with a lid that opens and shuts. More of that kind of thing on the sensory shelf.

That is six, and for a two-year-old six is about the ceiling. How many is a separate question — fewer than you have — and we wrote it up in how many toys should a toddler have.

How to arrange it

What follows is how Montessori guides lay out a classroom shelf. It is practice, handed down, and I have not found a study that tests any of it against the alternative. It works in our house, which is a smaller kind of claim.

• One tray or basket per activity. Everything that belongs to the activity sits in one container, and nothing else does. The child carries the whole tray to the mat and carries it back.
• Easiest on the left, hardest on the right. The reason guides give is reading direction, left to right, so the eye lands on the easy thing first. Treat it as a tidy habit rather than a finding.
• Put things back undone. A puzzle goes back with the pieces out beside the board. An assembled puzzle offers nothing to do. A taken-apart one is an invitation.
• Nothing stacked on anything. A toy on top of a toy is two toys the child cannot get at without knocking one over.
• Nothing that needs an adult to start. If the first step is find a grown-up, it belongs in a cupboard for the days you are free.
• Space between things. The gaps do as much as the objects. A shelf with room around each tray reads as five choices. Crammed, it reads as a pile.

The one study, and what it can carry

Anna Fisher, Karrie Godwin and Howard Seltman published a study in Psychological Science in 2014. They took 24 kindergarteners into a laboratory classroom for six short introductory science lessons. For some lessons the walls were covered in the usual classroom decoration. For others they were stripped bare.

With the decorated walls the children spent more of each lesson off task, and their scores on the lesson content came out lower. With the bare walls they stayed with the lesson longer and learned more of it.

Be careful with that. Twenty-four kindergarteners, in a lab, being taught, with the distraction on the walls and not on a shelf. A toddler's toy shelf at home is a different thing in most of the ways that matter, and reading the finding across to it is an inference. A reasonable one, I think, but an inference, and I would rather say so.

It is also contested. A commentary published the same year in Frontiers in Psychology argued that novelty was doing the work: a wall that is new pulls attention, and a wall they have stopped noticing may not. If that is right, it changes what you do with a shelf, not whether you keep it quiet. Whatever is new on it pulls attention, so spend that pull on purpose: one new tray at a time, the one you want noticed. Everything else stays quiet so the pull has nowhere else to go. Either way the advice comes out the same, and either way it is not proven.

What to leave off

Most of what a shelf needs is removal. It matters more than the arrangement, and it is the part that takes nerve.

• Anything that lights up or plays a tune. In our house it does the playing for the child, and it drags attention off everything else on the shelf. It can live in another room if you cannot bring yourself to give it away.
• The 200-piece set that only works dumped. Big open-ended sets are good toys and bad shelf toys. Twelve pieces in a basket on the shelf, the rest in a box.
• Anything already mastered. Watch what gets done in ten seconds and put down. Swap it out; it can come back in a month as a warm-up.
• Anything slightly too hard. The piece that gets handed to you is the tell. Off the shelf for now, back in a few weeks.
• Decorative baskets that hold nothing. They are on the shelf for you. A child reaches in, finds nothing, and learns something about the shelf you did not intend.
• A row of book spines. Two or three books face out, on their own, get read. A row of spines is furniture to a two-year-old.

What changes between one and three

The shelf itself needs two sentences. Any low, sturdy thing the child can reach the back of works, including a bookcase on its side, and we covered that in Montessori at home: where to start, so I will not repeat it. The contents are the part that shifts.

• At one: four trays, and the jobs collapse toward hands and senses. One thing to post, one to bang, one to open, one to feel. Big pieces only. See 1 year olds.
• At two: five or six, and the real-household tray earns its place. Pouring, wiping, a basket of things to carry from one end of the room to the other. See 2 year olds.
• At three: six to eight, with something that can be left half-done and returned to after lunch. This is also when sorting and counting objects start to hold. See 3 year olds.

Under one, honestly, skip the shelf. A basket on the floor with three things in it is the whole setup, and it moves to wherever you are.

If you set it up this weekend

Clear the shelf completely. Pick one thing per job, five or six for a two-year-old, and give each its own tray with space around it. Easy on the left. Puzzle pieces out. Nothing that lights up, nothing they have finished with, nothing they cannot start alone.

Then leave it, and watch which tray gets carried to the mat and which never moves. Within a day it will look worse than the photographs, and that is the sign it is working. A shelf styled for a camera stays perfect because nobody is allowed to touch it. Yours should have one tray missing at 6pm because somebody has it on the floor.