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A boy sits on a floor mat placing wooden spindles into a numbered spindle box.

PRESCHOOL · AGES 3 – 6 · THREE FAMILY-OWNED SCHOOLS

Montessori Preschool in St. Louis

Independence isn't something you hand a three-year-old all at once. At North American Montessori, it's built in layers: mixed-age classrooms, real materials, and the freedom to choose their own work, one finished task at a time.

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What you can count on

RATIOS
Low ratios in every preschool room
MIXED AGES, 3 TO 6
Older children lead and younger ones learn by watching
THEIR OWN PACE
Materials your child chooses and works through, not a fixed lesson plan

A room built for choosing

We won't hand you a bell schedule, because a Montessori classroom doesn't run on one. Here's the shape of a day in our Preschool Room:

  1. 01

    Arrival and choice

    Children settle in and choose their first work of the day from materials already set out and ready.

  2. 02

    Focused, hands-on work

    Practical life tasks, sensorial materials, and early math and language work, chosen and completed at each child's own pace.

  3. 03

    Circle time

    A shared moment for songs, stories, and group conversation.

  4. 04

    Outdoor and physical play

    Time to move, build coordination, and interact with classmates outside the classroom.

  5. 05

    Rest or quiet time

    As needed for younger preschoolers still adjusting to a full day.

Learn More About the Montessori Method

Five Areas, No Fixed Order

By preschool, the five areas of the Montessori curriculum look less like abstract ideas and more like a full, hands-on classroom.

Our 5 Areas Explained
01Practical LifePouring, buttoning, sweeping, and grace and courtesy.
02SensorialMaterials that isolate one sense at a time, so the world sorts.
03LanguageVocabulary, then the groundwork for reading and writing.
04MathematicsNumber in the hand first, then addition and beyond.
05CultureGeography, history and the sciences, explored by hand.

Inside our preschool rooms

Every preschool room keeps low ratios and is organized around freedom of movement: children choose where to work, care for their own materials, and help maintain the classroom itself. Rooms are equipped with developmentally appropriate materials and furniture sized for children.

The mixed age range, 3 to 6, is intentional. Older children reinforce what they know by helping younger ones, and younger children get a preview of what is coming next.

Little Hands, Big Work

Pictures explain a prepared classroom faster than paragraphs can. Here is what the work actually looks like, across all three schools.

A girl works with wooden cones and a triangle set on a striped mat.
Building with shapes
A boy in a blue smock scrubs a dark green squash with a brush on a tray.
Squash scrubbing
A boy lays out numeral cards and counters on a table.
Counting it out
Two boys color and work on paper activities at a classroom table.
Busy at the table
A girl traces a worksheet at her table with a puzzle nearby.
Tracing letters
Children lean in around a table to watch a classmate pour from a bottle into a bowl.
Science, up close

Trust, earned one family at a time

I visited several schools before choosing Casa Dia Montessori. And I wouldn’t send my daughter anywhere else. Her teachers are amazing and the school’s Headmistress is competent, smart, and caring. I feel comfortable leaving my daughter in the staff’s care. And she is learning so much.
Danielle SchabergCrestwood Parent
I have a 2 year old and a 4 year old going to Casa Dia Montessori and I couldn’t be happier. The facility is very clean, the food they serve is healthy, the teachers are top notch and my children love going to school there. No child care center’s rates are good, but they are extremely competitive for what their competition is. they are actually lower than any of their peers in the industry. Can’t say anything more than I wouldn’t go anywhere else.
Satisfied Parent
Really enjoy the teaching and learning style at CAC. My 2 year old has excelled with her ABCs, drawing, singing and cleaning up. Social interaction is great and she obviously has confidence from what she learns.
Michelle BakerConway Parent
Read all parent reviews

Find Your Nearest School

All three of our schools share the same Montessori philosophy and the same warm, family feel.

Frequently Asked Questions

Still wondering about something? Schedule a tour and ask us in person. Bring your child, too.

What ages are in the Preschool Room?

Three to six years old, in one mixed-age classroom.

What are the ratios in your preschool rooms?

Low ratios, in every room, every day.

Why are preschool ages mixed instead of grouped by year?

Mixed ages let older children reinforce their own learning by helping younger classmates, and let younger children learn by watching, a core part of the Montessori approach.

Do you offer full-time and part-time preschool?

Yes, we offer both full- and part-time options at all three St. Louis locations.

What will my child actually work on day to day?

Materials across the five Montessori curriculum areas: Practical Life, Sensorial, Language, Mathematics, and Cultural Studies, chosen by your child and guided by their teacher.

Ready to see it in person?

Schedule a tour at the school closest to you, and see a Preschool Classroom in session.

Schedule a tour Enroll

Full- and part-time options at all three St. Louis locations.