Decanomial Bead Bar BoxAdvanced Mathematical Exploration to 10
The first photo is the maker's own. The other shots are illustrative.
Inv. no. NIE-0190G0
- Maker
- Nienhuis Montessori, since 1929
- Approval
- AMI
- Primary Material
- Sustainable Hardwood
- Secondary Material
- Premium Glass Beads
- EAN
- 8719924010270
Final price incl. VAT. Free delivery.
Advice, warranty and returns are handled by us.
Why it costs €597.90
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 8719924010270 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 every length from one to ten, which is exactly what it takes to build the decanomial: the full multiplication table laid out as a square of squares and rectangles. A child builds it slowly, and the tables stop being a list to recite and become a shape whose symmetry can be seen from across the room. Taking it apart along the diagonal is where the squares of the numbers first stand out on their own. Glass bead bars in a compartmented wooden box, for ages 6 to 12.
Advanced Mathematical Concepts
Individual beads enable precise work with the decanomial square, supporting understanding of algebraic thinking and polynomial expressions through concrete manipulation.
Sequential Reasoning
The systematic organization and color-coding develop logical thinking patterns essential for advanced mathematical problem-solving and abstract reasoning.
Fine Motor Precision
Handling individual beads strengthens finger dexterity and hand-eye coordination while building the concentration needed for detailed mathematical work.
Quantity Visualization
The physical manipulation of individual units helps children internalize numerical relationships and develop strong number sense through sensorial experience.
How to present it
Place the bead bar box on a work mat at the child's table. Ensure adequate lighting to highlight the glass beads' brilliance and color distinctions.
- 1Invite the child to explore one color family of beads, counting each individual bead to verify the quantity
- 2Have the child arrange bead bars in ascending order, creating a visual staircase pattern
- 3Introduce comparing quantities by placing different colored bars side by side
- 4Guide the child in creating patterns using multiple bead bar families
3 tips for parents
- Allow your child extended time with this material, as deep mathematical understanding develops through repeated exploration
- Notice and celebrate your child's mathematical discoveries without rushing to the next concept
- Create a dedicated mathematics space at home where these materials can remain accessible for ongoing investigation
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: Compartmentalized design for organization
- Complete set of individual glass beads: Approx. 550 pieces in Montessori colors
- Wooden dividers: For systematic storage and presentation
Size and material
| Packaging | 32 × 32 × 6 cm |
| Primary Material | Sustainable Hardwood |
| Secondary Material | Premium Glass Beads |
| Recommended Age | 6-12 years |
| Skill Level | Advanced |
Care
Wipe wood with damp cloth, beads with mild soap if needed
Frequently Asked Questions
Is the Decanomial Bead Bar Box appropriate for children younger than 6?
The Decanomial Bead Bar Box is specifically designed for elementary children ages 6-12 who have already mastered basic counting and the golden bead material. Younger children should first work with simpler bead materials like the colored bead bars and golden beads to build the foundational understanding necessary for this advanced mathematical material.
Can this material be used effectively in a home environment or is it better suited for classrooms?
While the Decanomial Bead Bar Box is excellent for both home and classroom use, it requires proper presentation by an adult familiar with Montessori mathematical progression. Home educators should ensure they understand the sequential lessons and have adequate workspace for the material's full layout. The investment is worthwhile for families committed to authentic Montessori mathematics education.
What makes the glass beads superior to plastic alternatives?
The individual glass beads provide superior tactile feedback, weight, and durability essential for precise mathematical work. Glass beads offer a premium sensory experience that supports concentration and careful handling, while their clarity allows children to see quantities distinctly. This quality construction ensures the material will serve multiple children over many years of intensive use.
How should parents or teachers present the Decanomial Bead Bar Box to children?
The Decanomial should be introduced after children have mastered the golden bead material, colored bead bars, and understand place value concepts. Begin with simple quantity recognition and counting exercises, progressing to pattern exploration and eventually algebraic thinking. Each lesson should be presented slowly and methodically, allowing the child to explore the mathematical relationships through hands-on manipulation.
Why is AMI certification important for this advanced mathematical material?
AMI certification ensures this Decanomial Bead Bar Box meets Maria Montessori's exact specifications for mathematical materials. The precise measurements, color coding, and quality standards are crucial for the material's effectiveness in developing abstract mathematical thinking. AMI-certified materials guarantee the authentic sensory experience necessary for children's mathematical development and successful transition to abstract concepts.
Product safety
Manufacturer: Nienhuis Montessori, Anders Celsiusstraat 15, 7442 PB Nijverdal, Netherlands
Decanomial Bead Bar Box