The subjects have been twelve children of both sexes, belonging to a class of the elementary course in its first year in a public school. Such children did not exhibit the repertoires of reading or of identifying numerals. Their ages shifted between 6 and 8 years. Such behaviors have been taught by means of a conditional discriminative procedure. The occurrence of learning without error of the taught relations for all Ps has been found out, except from one of them (P10). During test steps of relations BC/CB, the Ps established equivalencies. During the test of relations C'D, the Ps read new terms, now composed of new words and numerals, in addition to other generalizing terms. The related data are discussed, showing that reading and writing words and identifying numerals are classes of equivalent stimuli, and that teaching them facilitated and improved reading with understanding, making possible the extension of such a procedure to an applied situation.
Reading; Identifying numerals; Word-numeral equivalency; Difficulties in learning
