
Circles, Squares & Triangles
The first photo is the maker's own. The other shots are illustrative.
Inv. no. NIE-004500
- Maker
- Nienhuis Montessori, since 1929
- Approval
- AMI
- Primary Material
- Solid wood
- Finish
- Painted lacquer
- EAN
- 8719924002541
Final price incl. VAT. Delivery €5.90, €30.10 to go for free delivery.
Advice, warranty and returns are handled by us.
Why it costs €118.90
Behind the price of the original are things you can check yourself.
AMI approval
The material is approved by the Association Montessori Internationale (AMI). Nienhuis has made Montessori materials since 1929.
A verifiable original
The EAN 8719924002541 is on the box. It is the maker's number, not ours.

Circles, Squares & Triangles in a child's hands
An essential classroom resource, this geometric shapes set features three sliding wooden trays, each dedicated to circles, squares, and triangles in vibrant primary colors. The ingenious compartmented design allows children to explore shape discrimination, color matching, and classification skills through hands-on manipulation, supporting the development of visual perception and mathematical thinking essential to the Montessori sensorial curriculum.
Visual Discrimination
Distinguishing between geometric forms strengthens visual perception skills essential for reading and mathematics.
Classification Skills
Sorting by shape and color develops logical thinking and prepares the mathematical mind for abstract concepts.
Fine Motor Refinement
Sliding trays and manipulating shapes enhances pincer grip and hand-eye coordination needed for writing.
Order and Concentration
The structured presentation encourages focused work cycles and satisfies the child's need for order during the sensitive period.
How to present it
Place one sliding tray on a work mat, starting with circles. Ensure all shapes are mixed within the tray's main compartment. Sit to the child's right if you are right-handed.
- 1Slide open the tray slowly, revealing the compartmented sections and mixed shapes
- 2Select one circle, trace its edge with two fingers, then place it in an empty compartment
- 3Continue sorting all circles by color into their respective compartments
- 4Once complete, invite the child to close and reopen the tray, mixing shapes to repeat
3 tips for parents
- Look for shape recognition in daily life: 'Your plate is a circle like the shapes you sort at school'
- Avoid quizzing, instead, make observations: 'I notice that sign has four corners like a square'
- Support shape work at home with simple sorting of household items: round lids, square coasters
Spare parts

If you are not sure it suits your child, we answer in person.
Norbert Kovalčín, founder of Faborino · write to him
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What's in the Box
- Circles Tray: Red, blue, and yellow circles
- Squares Tray: Red, blue, and yellow squares
- Triangles Tray: Red, blue, and yellow triangles
- Storage System: Three sliding compartment trays
Size and material
| Packaging | 36 × 13 × 6 cm |
| Primary Material | Solid wood |
| Finish | Painted lacquer |
| Recommended Age | 3-6 years |
Care
Wipe with slightly damp cloth, dry immediately
Frequently Asked Questions
What shapes and colors are included in this geometric set?
The set includes circles, squares, and triangles in vibrant primary colors (red, blue, and yellow). Each shape type has its own dedicated sliding wooden tray with compartmented sections for organizing the pieces by color and size.
How does this material support mathematical development in young children?
This sensorial material builds the foundation for geometry by helping children internalize shape properties through touch and manipulation. It develops visual discrimination, classification skills, and prepares the mathematical mind for later concepts like fractions, area, and geometric relationships.
What is the recommended age range and how should children progress with this material?
Designed for ages 3-6, children typically begin by sorting shapes into their respective compartments, then progress to matching by color, comparing sizes, and creating patterns. The material grows with the child, supporting increasingly complex classification and seriation activities.
How durable is this wooden material for classroom use?
Crafted from high-quality wood with smooth, splinter-free surfaces and non-toxic paint, this material is designed for daily classroom use. The sliding tray design protects pieces from loss and the sturdy construction withstands repeated handling by young children.
What specific Montessori skills does this material develop?
This material develops visual perception, fine motor control, hand-eye coordination, and concentration. It introduces mathematical concepts through sensorial exploration, supports language development through shape vocabulary, and builds executive function through sorting and organizing activities.
Product safety
Manufacturer: Nienhuis Montessori, Anders Celsiusstraat 15, 7442 PB Nijverdal, Netherlands
Circles, Squares & Triangles