71. A talking electronic apparatus as set forth in claim 70, wherein the audibly presented selected word-related problem comprises a request to spell a particular word; and wherein said keyboard input as generated by the operator is displayed as a sequence of visual letter images on said display panel as the suggested spelling of said particular word provided by the operator as a proposed answer.
71. A talking electronic apparatus as set forth in claim 70, wherein the audibly presented selected word-related problem comprises a request to spell a particular word; and wherein said keyboard input as generated by the operator is displayed as a sequence of visual letter images on said display panel as the suggested spelling of said particular word provided by the operator as a proposed answer. 72. A talking electronic apparatus as set forth in claim 71, wherein said housing contains said memory means, said speech synthesis means, said audio means, said means for selectively transferring a portion of said digital speech data, and said comparator means; and said housing being of sufficiently small size so as to define said apparatus as a self-contained hand-held unit.