Triangular PrismShort Based Geometric Solid
The first photo is the maker's own. The other shots are illustrative.
Inv. no. NIE-018808
- Maker
- Nienhuis Montessori, since 1929
- Approval
- AMI
- Product size
- 10 × 10 cm
- Construction
- Solid painted wood
- Finish
- Smooth painted surface
- EAN
- 8719924009984
Final price incl. VAT. Delivery €5.90, €98.10 to go for free delivery.
Advice, warranty and returns are handled by us.
Why it costs €50.90
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 8719924009984 is on the box. It is the maker's number, not ours.
Triangular Prism in a child's hands
The short triangular based prism is a blue Montessori geometric solid used for the calculation of volume. It belongs to a set of blue solids derived from a base of 10 × 10 cm; this one has a height of 6.66 cm and is made of painted wood. The child measures the base and the height and works out the volume from them. The solid weighs 300 g and is a single piece, not a set. Wipe it with a damp cloth and dry it immediately so that the painted surface does not stay wet. It is meant for children aged 6 to 12.
Stereognostic Sense
Develops the ability to recognize forms through touch and muscular memory, essential for abstract geometric thinking.
Mathematical Foundations
Introduces concepts of faces, edges, and vertices while building understanding of how 2D shapes create 3D forms.
Spatial Reasoning
Enhances visualization skills and understanding of three-dimensional relationships through hands-on exploration.
Language Development
Provides concrete referent for geometric vocabulary including prism, triangular base, and rectangular faces.
How to present it
Place the triangular prism on a mat alongside paper, pencil, and ruler. Have the geometric solids basket nearby for comparison work.
- 1Invite the child to explore the prism with closed eyes, feeling edges, vertices, and faces
- 2Introduce vocabulary: base, lateral faces, edges, vertices, using the three-period lesson
- 3Trace around each face on paper to create a net of the prism
- 4Count and record the number of faces, edges, and vertices
- 5Explore how the prism relates to the triangle from the geometric cabinet
3 tips for parents
- Look for triangular prisms in everyday life (roof sections, packaging) and discuss their properties during daily activities
- Support vocabulary development by using geometric terms naturally in conversation
- Encourage building activities with blocks or construction materials that incorporate triangular prisms
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
- Short Triangular Based Prism: Single solid geometric form
Size and material
| Product size | 10 × 10 cm |
| Packaging | 12 × 10 × 9 cm |
| Construction | Solid painted wood |
| Finish | Smooth painted surface |
| Recommended Age | 6-12 years |
Care
Wipe with damp cloth, dry immediately
Frequently Asked Questions
What are the dimensions of this short triangular based prism?
This Montessori geometric solid typically measures approximately 10cm in length with a triangular base of about 5cm per side, making it ideal for elementary-aged children to handle and explore comfortably during geometry lessons.
How does this prism support elementary geometry learning?
The short triangular prism helps children understand 3D shapes, calculate surface area and volume, identify faces, edges, and vertices, and make connections between 2D triangular shapes and their 3D forms, essential for elementary geometry curriculum.
What activities can children do with this geometric solid?
Children can trace faces to create nets, explore cross-sections, calculate measurements, sort and classify with other solids, study light and shadows, and use it for advanced nomenclature work identifying parts of three-dimensional shapes.
Is this prism part of a larger geometric solids set?
Yes, this triangular prism is designed to work with the complete Montessori geometric solids collection, including cubes, spheres, cylinders, pyramids, and other prisms, allowing comprehensive exploration of three-dimensional geometry concepts.
What age-appropriate extensions can be done with this material?
Elementary students can create architectural models, study crystal formations, explore volume formulas (V = base area × height), investigate real-world applications of prisms, and connect to studies in physics, engineering, and natural sciences.
Product safety
Manufacturer: Nienhuis Montessori, Anders Celsiusstraat 15, 7442 PB Nijverdal, Netherlands
Triangular Prism