Two sets of nomenclature cards for the geometric cabinet, one with separate labels for matching and one control set labelled at the bottom, printed in blue on white card stock. Blue is not decorative here: the cabinet's own insets are blue, so a card and its inset read as the same object in two states. The control set is what makes the work independent, since nobody has to be asked whether a scalene triangle is a scalene triangle. Card stock, for ages 3 to 6.
“Education is a natural process spontaneously carried out by the human individual, and is acquired not by listening to words but by experiences upon the environment.”
The Geometric Cabinet Nomenclature Cards embody Montessori's principle of isolating difficulty by presenting one concept at a time - the name of each geometric form.
Following the three-period lesson structure, these cards bridge the gap between the child's sensorial exploration with the Geometric Cabinet and their emerging ability to categorize and name abstract concepts. The material respects the child's need for repetition and self-correction, allowing independent practice of newly acquired vocabulary. By providing the exact language at the moment of readiness, we support the child's natural tendency toward precision and order. The cards serve as keys to language during the sensitive period for vocabulary enrichment, transforming sensorial impressions into conscious knowledge that can be communicated and shared with others.


Follow the Montessori method of presentation for optimal child development.
Place the reading cards in a basket on the shelf near the Geometric Cabinet. Ensure the child has worked extensively with the cabinet drawers. Choose one drawer's shapes for the initial presentation.
Invite the child and bring one drawer with its corresponding cards to a mat
Remove shapes from drawer, placing them in a row. Take out matching picture cards and place below shapes
Introduce reading labels using three-period lesson: 'This is the pentagon'
Mix labels and have child match to pictures: 'Can you place the label under the pentagon?'
Child practices independently, matching shapes to pictures to labels

Heritage
Since 1929

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AMI
Endorsed

Introduces precise geometric vocabulary, supporting the child's mathematical language development and classification skills.
Refines the ability to distinguish between similar shapes while connecting visual recognition to written language.
Present nomenclature cards only after extensive sensorial work with the actual Geometric Cabinet
Everything you need to know about this material.
Contact Our ExpertsThe cards include all shapes from the traditional Montessori Geometric Cabinet: circles, triangles (equilateral, isosceles, scalene, right-angled), quadrilaterals (square, rectangle, rhombus, parallelogram, trapezoid), regular polygons (pentagon through decagon), and curved figures (ellipse, ovoid, curvilinear triangle, quatrefoil).
Three-part cards consist of a control card showing both the shape and its name, a picture card displaying only the shape, and a label card with just the written name. Children match the separate picture and label cards to the control card, promoting reading skills and shape recognition simultaneously.
While the cards can be used independently for shape recognition and vocabulary building, they are designed to complement the Geometric Cabinet. Children benefit most when they can match the cards to the concrete shapes, creating a meaningful connection between the sensorial experience and abstract concepts.
Begin with shapes the child has explored sensorially in the Geometric Cabinet. Start with 3-4 familiar shapes, introducing the nomenclature through the three-period lesson. Gradually add more complex shapes as the child masters the initial set, always connecting the cards to their concrete cabinet counterparts.
These cards build precise mathematical vocabulary essential for later geometry studies. They develop visual discrimination, classification skills, and the ability to identify shapes in various orientations. The cards also prepare children for understanding geometric relationships, properties, and measurements in elementary mathematics.
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