The Knobless Cylinders are the final stage in the dimensional material where the child, based upon his ability to discriminate, places the individu...

The Red Rods develop visual discrimination of length, while height, color and width remain constant. Ten solid wooden rods increasing in length in ...

A wooden display stand with a satin smooth lacquer finish.

This series of cubes develops visual discrimination of size in 3 dimensions. Exploration with this material prepares the child for mathematical con...

The Cylinder Blocks introduce the child to the first stage of visual discrimination of size. Cylinders diminish in height yet increase in diameter ...

The Cylinder Blocks introduce the child to the first stage of visual discrimination of size. Cylinders progress in diameter from thin to thick. Mad...

The Sound Boxes develop auditory discrimination through exercises in pairing and grading a series of sounds. This item consists of two sets...

The Tasting Bottles are used to refine the gustatory sense. The bottles are prepared, by the teacher, with the basic tastes of sweet, sour,...

Thermic sense is refined through exercises of pairing and grading. The bottles are chrome-plated copper for conductivity, and are identical...

The Smelling Bottles are used to refine the olfactory sense through matching. The teacher prepares the bottles with a variety of pairs of s...

The Thermic Tablets are used to cultivate the ability to discriminate thermic qualities. Consists of a wooden box divided into 6 compartmen...

The Baric Tablets introduce and refine the concept of the baric sense. While blindfolded, the child endeavors to discern the weight of the tablets....

5 pairs of varying grades of rough surfaces on on solid beechwood tablets 13.5x9 cm. Includes a box for storage.

This set of 3 boards forms the introductory materials for development of the tactile sense and prepares the hand for writing. The first board intro...

This board introduces the child to gradations of smoothness. The board measures 30 x 15 cm.

Five pairs of varying smooth surfaces mounted on solid beechwood tablets 12 x 9 cm. Includes a box for storage.

Through touch, the child pairs the fabrics according to varying textures. Includes: fabrics in cotton, wool, jute, silk, leather and synth...

Box with 19 wooden prisms (1x1x20 cm) in a natural wood finish. Used to compare and calculate the volume of the prisms of The Brown Stair.

A box with 273 wooden cubes (1x1x1 cm) in a natural wood finish. Used to compare and calculate the volume of the cubes of The Pink Tower.

A set of 2 cloth bags.

Designed to extend hand motion and to strengthen and reinforce the pincer grasp.

This material stimulates hand-eye coordination.