One glass tablet from the thermic tablets, 8 x 4 cm, sold as a single replacement. Glass is the tablet that catches children out: it looks and feels like it should be the coldest thing in the box, and against marble or steel it is not. That gap between what a material looks like and what the hand reports is the whole exercise, and it only works while all six pairs are present. The complete set in its six compartment box is a separate item.
“Free the child's potential, and you will transform him into the world.”
The Thermic Tablets embody Maria Montessori's principle of sensorial education through isolation of difficulty.
By focusing solely on temperature perception, this material helps children refine their thermal sense without visual or textural distractions. The glass tablet, as part of the complete set, provides a neutral temperature baseline that changes based on ambient conditions and touch. This material demonstrates Montessori's belief that children construct their intelligence through sensory exploration and comparison. The concrete experience of feeling temperature differences prepares the child for abstract concepts in science while developing the discriminatory powers of the thermal sense, one of the often-overlooked sensory channels that contributes to the child's complete sensorial development.


Follow the Montessori method of presentation for optimal child development.
Place the glass tablet on a mat or table at room temperature. Ensure your hands are at normal body temperature. Have a small cloth nearby for cleaning the tablet between uses.
Invite the child and demonstrate washing your hands with room temperature water
Sit beside the child and gently touch the glass tablet with your fingertips, showing concentration
Lift the tablet with both hands and hold it against your cheek briefly
Return the tablet to the mat and invite the child to touch it
Introduce vocabulary only after the child has explored: 'This feels cool'

Heritage
Since 1929

Brands used by
schools worldwide

European brands

AMI
Endorsed

Develops the child's ability to perceive and differentiate temperature variations through tactile exploration.
Isolates the thermal sense, helping children focus on temperature as a distinct sensorial quality.
Store the tablet at room temperature to ensure consistent baseline experiences
Everything you need to know about this material.
Contact Our ExpertsThis listing is for one individual glass tablet only. The complete Thermic Tablets material typically includes pairs of tablets in different materials (wood, metal, marble, felt, cork, and glass). This single glass tablet can be used as a replacement piece or to create your own thermic tablet set.
The child touches the glass tablet with their fingertips or palm to feel its temperature. Glass typically feels cool to the touch and conducts heat away from the hand quickly. Children learn to distinguish this sensation from other materials and develop vocabulary like 'cool,' 'smooth,' and 'cold' to describe their experience.
Thermic tablets refine the child's thermal sense and ability to distinguish temperature differences through touch. This sensorial work helps develop concentration, discrimination skills, and precise vocabulary. It also prepares children for later science concepts about heat conduction and material properties.
While specific dimensions aren't provided, standard Montessori thermic tablets are typically rectangular pieces approximately 8cm x 4cm. The glass tablet features smooth, polished surfaces that are safe for children to handle and thick enough to be durable for classroom use.
While the full educational benefit comes from comparing different materials, a single glass tablet can still be valuable for temperature exploration, vocabulary development, and as part of extension activities. Teachers often use individual tablets for isolation exercises or to create custom material comparison activities.
Trusted across Europe
Premium educational materials, trusted by Montessori educators and families across Europe.

Faborino quality
Montessori-aligned