COMPLETE Montessori Geometric Cabinet

Complete 6 Tray Set (Full Size + Compact A4 Versions)

Over 100 years ago, Dr Maria Montessori designed beautiful hands-on materials to help children explore concepts through movement, touch, and observation.

I’m working from that same philosophy — but adapting the materials for a modern world where many homes and classrooms now have access to affordable 3D printers.

As a homeschooling parent, I originally designed this geometric cabinet for our own learning space because authentic Montessori materials can be incredibly expensive and hard to source. I wanted something that stayed aligned with Montessori principles while also being practical for real homes and classrooms.

So this set is designed to be:

• Affordable to produce
• Easy to print
• Practical to store
• Faithful to the purpose of the original material

What Is the Montessori Geometric Cabinet?

The geometric cabinet is one of the classic Montessori sensorial materials.

It helps children develop:

• Shape recognition
• Visual discrimination
• Fine motor control
• Early geometry concepts
• Vocabulary development

Authentic Montessori materials isolate one concept at a time. Rather than overwhelming children with busy activities, the geometric cabinet intentionally focuses on helping them deeply explore shape and form through hands-on interaction.

What’s Included

This is a digital download (no physical product) containing files to 3D print the complete geometric cabinet set.

Circles

• Diameters from 10 cm down to 5 cm

Rectangles

• 10×10 cm square, 10×9 cm, 10×8 cm, 10×7 cm, 10×6 cm, 10×5 cm

Triangles

• Equilateral
• Acute-angled isosceles
• Right-angled isosceles
• Right-angled scalene
• Obtuse-angled isosceles
• Obtuse-angled scalene

Regular Polygons

• Pentagon
• Hexagon
• Heptagon
• Octagon
• Nonagon
• Decagon

Curvilinear Figures

• Ellipse
• Oval
• Quatrefoil
• Curvilinear triangle

Quadrilaterals

• Isosceles trapezoid
• Rhombus
• Right trapezoid
• Parallelogram

Two Size Options Included

Full Size Version

Designed closely to traditional Montessori proportions aligned with the metric system and ideal for larger shelves or classroom environments.

Compact A4 Version

A reduced-size version I created for our own homeschool (inspired by Jovis from Hometessori) because the original cabinet was too hard to store.
This version fits neatly inside standard A4 drawer systems and small learning spaces while still preserving the learning experience.

New to 3D Printing?

You really don’t need to be an expert to use these files.

Many schools, libraries, STEM spaces, and even some community centres now have 3D printers available. Home printers are also becoming much more affordable and beginner-friendly.

These files are designed to print simply:

• No supports required
• Standard PLA filament works perfectly
• Optimized for standard FDM printers

Design Features

✅ Smooth, reliable printing
✅ Rounded edges for small hands
✅ Snug-fitting insets
✅ Durable while minimizing filament use
✅ Montessori-aligned proportions
✅ Easy storage options for homeschool environments

For the most authentic Montessori look, print with:

• Blue insets
• Yellow trays

A Note From Me

I’m just a mum designing Montessori materials for our own homeschool and sharing them in case they help someone else too.

I spend a lot of time researching Dr Montessori’s original writings and adapting those ideas into forms that are practical and accessible through modern home manufacturing like 3D printing.

This isn’t about reinventing Montessori materials — it’s about helping more families and educators access them.

Perfect For

Montessori homeschool • Preschool • Kindergarten • Early years classrooms • Hands-on geometry • Sensorial learning • STEM spaces

Keywords

Montessori geometric cabinet, geometry for kids, preschool geometry, homeschool math, sensorial materials, Montessori printable, 3D printable classroom resources, kindergarten shapes, hands-on learning