Two non-verbal cognitive systems, an approximate number system (ANS) for extracting the numerosity of a set and a parallel individuation (PI) system for distinguishing between individual items, are hypothesized to be foundational to symbolic number and mathematics abilities. However, the exact role of each remains unclear and highly debated. Here…

This article, which sheds light on the variety of symbol use among children, discusses the need to investigate each symbolic medium separately and to integrate cognitive and affective aspects underlying artistic production. (Editor/RK)

This study examined (1) the level of symbolic capability as revealed in play, (2) the use of spontaneous vocal imitation, and (3) the nature of certain classes of words occurring in spontaneous infant language. Facets of child behavior were examined during the period of single-word utterances and early multiword combinations with a view to…

Discusses the problems involved in matching differences between learners and differences between different types of media to improve the learning process. Thirty-eight references are cited. (CHC)

An experiment was conducted to investigate three topics of current interest in education: critical thinking, programed instruction, and aptitude-treatment interaction. Thirty college students and 31 ninth graders with extreme discrepancies between their verbal and quantitative aptitude scores were taught eight principles of class reasoning by…