Ostensive definitions of words are ambiguities as to their referent. In a study of infant-mother dyads engaged in looking at picture books, 95 percent of ostensive definitions referred to the whole object depicted rather than parts, attributes, or actions. When parts were named, ambiguity was avoided by naming the part and the whole. (PJM)

This longitudinal research examines the development of literacy skills in the context of an educational microcomputer implementation conducted to evaluate word processors and LOGO as tools for cognitive enrichment. Three classes including 87 children in Fredericton, New Brunswick, Canada are being followed from first- through third-grade. One…