Decanomial Bead Bar BoxComplete Nylon Bead Set 1-10
The first photo is the maker's own. The other shots are illustrative.
Inv. no. NIE-0190M0
- Maker
- Nienhuis Montessori, since 1929
- Approval
- AMI
- Beads
- Nylon
- Storage Box
- Natural wood
- EAN
- 8719924010287
Final price incl. VAT. Free delivery.
Advice, warranty and returns are handled by us.
Why it costs €362.90
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 8719924010287 is on the box. It is the maker's number, not ours.
Decanomial Bead Bar Box in a child's hands
Fifty five bead bars of each length from one to ten, in nylon, which is what the decanomial takes: the whole multiplication table built as a square of squares and rectangles. Laid out, it is large enough that its symmetry reads from across the room, and the child who built it can point to where seven eights and eight sevens meet. Taking it apart along the diagonal leaves the square numbers standing alone, which is usually the moment squaring stops being a rule. Nylon bead bars in a wooden storage box, for ages 6 to 12.
Advanced Mathematical Thinking
Supports understanding of squared numbers, multiplication patterns, and algebraic concepts through concrete manipulation.
Visual Discrimination
Color-coded system reinforces quantity recognition and supports pattern identification in mathematical relationships.
Abstract Preparation
Bridges concrete bead work to abstract mathematical operations, preparing for binomial and trinomial theorem work.
How to present it
Place the Decanomial Box on a large work mat. Ensure ample floor space for laying out the complete decanomial square. Have a smaller mat ready for initial presentations.
- 1Begin by removing all bead bars systematically, starting with unit beads, laying them in columns by quantity
- 2Build the multiplication table concretely: start with 1x1 through 1x10, then 2x1 through 2x10, continuing systematically
- 3Transform the multiplication table into the decanomial square by rearranging bars to form a large square pattern
- 4Explore algebraic concepts by building (a+b)² using different combinations of bead bars
- 5Record discoveries using graph paper, coloring squares to match bead bar patterns
3 tips for parents
- Resist explaining patterns - allow your child the joy of independent discovery through manipulation
- Provide large floor space at home if child wants to recreate the work; a hallway often works well
- Support abstract connections by asking 'What did you discover today?' rather than 'What did you learn?'
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
- Wooden storage box: With 10 labeled compartments
- Complete bead bar sets: Quantities 1-10 in traditional colors
- Multiple bars per quantity: Sufficient for decanomial layout work
Size and material
| Packaging | 32 × 32 × 6 cm |
| Beads | Nylon |
| Storage Box | Natural wood |
| Bead Stringing | Metal wire |
| Recommended Age | 6-12 years |
Care
Wipe beads with damp cloth; dust wooden box regularly
Frequently Asked Questions
What is included in the Decanomial Bead Bar Box set?
The box contains complete sets of color-coded nylon bead bars from 1 to 10, following the traditional Montessori color scheme (1-red, 2-green, 3-pink, 4-yellow, 5-light blue, 6-violet, 7-white, 8-brown, 9-dark blue, 10-golden). Each quantity has multiple bars stored in a wooden compartment box with precisely organized sections.
How does this material support advanced multiplication work?
The Decanomial Bead Bar Box allows children to physically construct multiplication facts and explore the commutative property of multiplication. Students can lay out bead bars to create multiplication squares, discover patterns in products, and work toward memorization of multiplication tables through concrete manipulation.
Why is this material recommended for ages 6-12 when it's categorized as Sensorial?
While traditionally used for mathematical concepts, the material's sensorial aspects include color discrimination, pattern recognition, and spatial organization. The age range 6-12 reflects its use in elementary classrooms where children explore algebraic concepts through visual and tactile experiences with the color-coded system.
What are the advantages of nylon beads over traditional glass beads?
Nylon beads are more durable and safer for classroom use, being unbreakable and lightweight. They maintain the precise sizing and vibrant colors essential for Montessori work while reducing replacement costs and safety concerns associated with glass beads.
How does this material prepare children for algebraic concepts?
The Decanomial Bead Bar Box introduces algebraic thinking by allowing children to physically represent squared numbers (a²), products (ab), and the expansion of (a+b)². Students can build the decanomial square, discovering binomial and trinomial patterns that form the foundation for later abstract algebraic work.
Product safety
Manufacturer: Nienhuis Montessori, Anders Celsiusstraat 15, 7442 PB Nijverdal, Netherlands
Decanomial Bead Bar Box