Box with Prisms for Brown Stair
The first photo is the maker's own. The other shots are illustrative.
Inv. no. NIE-002520
- Maker
- Nienhuis Montessori, since 1929
- Approval
- AMI
- Product size
- 1 × 1 × 20 cm
- Construction
- Beech wood
- Finish
- Natural
- EAN
- 8719924001230
Final price incl. VAT. Delivery €5.90, €91.10 to go for free delivery.
Advice, warranty and returns are handled by us.
Why it costs €57.90
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 8719924001230 is on the box. It is the maker's number, not ours.
Box with Prisms for Brown Stair in a child's hands
The Box with Prisms for the Brown Stair holds 19 beech prisms with a natural finish. Each prism has a square section of 1 × 1 cm and is 20 cm long, so its volume is 20 cm³. The child lays the prisms beside those of the Brown Stair to compare and calculate their volume. The Brown Stair itself is a separate material. Packed, the box measures 23 × 22 × 3 cm and weighs 780 g. The prisms are wiped with a slightly damp cloth and dried at once. For ages 3 to 6.
Visual Discrimination
The organized presentation helps children perceive subtle differences in dimension as they work with the Brown Stair prisms.
Understanding Volume
Comparing the Brown Stair prisms with the unit prisms lets the child see volume as a number of equal parts and discover relationships between dimensions.
Care of Environment
Children develop responsibility and respect for materials by properly storing the prisms after use.
Preparation for Mathematics
The systematic organization supports later understanding of base-ten system and dimensional relationships.
How to present it
3 tips for parents
- At home, point out thick and thin objects in daily life to reinforce the concept
- Avoid correcting errors directly; allow your child to discover mistakes independently
- Celebrate the process of working with the material rather than the finished product
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
- Box: Wooden, in a natural finish
- 19 wooden prisms: 1 × 1 × 20 cm
Size and material
| Product size | 1 × 1 × 20 cm |
| Packaging | 22 × 23 × 3 cm |
| Construction | Beech wood |
| Finish | Natural |
| Recommended Age | 3-6 years |
Care
Wipe with slightly damp cloth, dry immediately
Frequently Asked Questions
Does this box include prisms, or is it just a storage container?
Yes, the box contains 19 wooden prisms, each 1 × 1 × 20 cm, in a natural wood finish. They are used to compare and calculate the volume of the prisms of the Brown Stair. The Brown Stair itself is a separate material and is not in the box.
What size are the prisms in the box?
Each of the 19 prisms in the box measures 1 × 1 × 20 cm.
How does this material support the child's learning?
The child compares the volume of the Brown Stair prisms with the prisms from the box: the thinnest step takes one, the next four, then nine. The squares appear in the hands rather than on a page.
Is this compatible with Brown Stair sets from other manufacturers?
The prisms in the box measure 1 × 1 × 20 cm and are used to compare the volume of the Brown Stair prisms. Brown Stairs from other manufacturers can differ in size, so we recommend checking that the dimensions match before purchasing.
What wood is this box with prisms made of?
It is made of beech wood in a natural finish.
Product safety
Manufacturer: Nienhuis Montessori, Anders Celsiusstraat 15, 7442 PB Nijverdal, Netherlands
Box with Prisms for Brown Stair