Numbers & Counters Purpose: to understand that separate units from each Numeral to arrange the Numerals in their correct order to place the proper quantity beneath each Num ... Spindle Boxes Purpose: To learn the concept of zero. To see the numerals 0 to 9 in their correct fixed sequence, and to match them with the correct number of loose Spindles. ... Sandpaper Numbers Purpose: To learn the names of the numerals, by recognizing their written shape. Age:3-3.5 years old Material: ... Number Rods Purpose: To visualize the quantities 1 to 10, and to learn to count and to associate the names with the quantities. Age: 3 - 3.5 years old ... Baric Tablets Purpose: To aid the child becoming conscious of difference in weight with the help of the baric sense. Age: 3.5 years old M ... Sound Boxes Purpose: To refine the child's auditory sense. Age: 3 years old Material: 2 Boxes, each containing 6 cylin ... Brown Stair Purpose: To develop visual discrimination of width. Age: 3 -3.5 years old Material: Ten brown wooden prism ... The Pink Tower Purpose: To develop visual discrimination of three linear dimensions: length, height, width. Age: 2.5 - 3 years old. Materi ... Cylinder Blocks Purpose: To develop visual discrimination of height and diameter. Age: 2.5-3 years old. Material: There ar ... Teen Bead Hanger Purpose: To confirm that a child can successfully draw the association between the quantity (concrete) and the numbers (abstract). Age: 4.5 – 5 ye ...