Abstract: A teaching device useful in helping children, especially slow learners, in spelling, reading and pronunciation. The device includes a three-tiered case or housing having a movable drawer on each tier. Each drawer is divided into a plurality of compartments. In each compartment are placed a plurality of three-dimensional letter pieces which may be colored in a plurality of different colors to reflect different pronunciations in different words. One color code is provided for vowel pronunciation, while another color code is provided for consonant pronunciation. Additionally, the drawers may contain groups of connected letter pieces, consisting of two or more letters, to aid in forming words with common prefixes, suffixes, or intermediate letter groupings. The casing has the color code imprinted on one side thereof, and a syllable pronunciation aid imprinted on the other. On the back of the case are positioned small canvas boards upon which are imprinted additional phonics and writing information.

Abstract: A mathematics visual aid particularly useful in teaching subtraction to both slow and fast learners. The apparatus includes in a preferred embodiment form a support structure having a plurality of vertical divider members which define a plurality of working compartments or work areas. The compartments are arranged in columns, from right to left, which correspond to the increasing place-value components 1, 10, 100, 1,000 . . . etc. Affixed within each of the plurality of columns is a unique set of workpieces such that each column is associated with one place-value component. Each workpiece comprises a substantially cylindrical body having a shaft extending axially therethrough. Extending upwardly from a portion of the cylindrical surface of each workpiece are integrally formed information-bearing indicia which, within each column, identify that column's place-value.