The Euclidean algorithm for finding the greatest common divisor is presented. (MNS)

The accuracy of deaf adults' letter report was greater for real and nonsense words than for pseudowords, and error analysis shows deaf adults tend to produce orthographically regular responses. These findings indicate clearly the use of orthographic structure in word recognition. (MSE)

Three experiments employed rectangles in stimulus identification tasks. It was concluded that the initial perceptual processing of rectangles is accomplished by separate dimensional analyzers operating in parallel. Observers adopt different decision strategies for negatively correlated sets and for single dimension sets when the number of…

Computer programs to protect a home computer from tampering by a preschool child, while at the same time providing practice for the child in character and shape recognition, are given. (TG)

Presents results of two experiments which measured contrast sensitivity function in infants. Information concerning development of visual acuity, low frequency attenuation, and sensitivity to contrast were collected. Results provide an approximate picture of and means for detection of infants' pattern information. (Author/DB)

Two experiments investigated the process by which children encode briefly presented spatial positions. First, third, and fifth graders were asked to judge whether a test dot occupied the same position on a card as any one of a number of dots which had been presented tachistoscopically. (JMB)

This is the fourth in a series of articles introducing the recently initiated Activities Integrating Math and Science (AIMS) program for the development of a pattern-based mathematics/science curriculum. Discusses proportional relationships, proportional reasoning at the manipulative level, proportional reasoning expressed as written language,…

Thirty-six kindergartners were asked to respond to questions and construct figures designed to test their knowledge of hierarchical relations. Subjects had considerable knowledge of subset and superset classification, and could draw transitive inferences with little difficulty; however, they appeared to have little appreciation of the asymmetry…

Compared 24 month olds' ordered recall of events constrained by enabling relations with that of arbitrarily ordered events equated for familiarity and temporal invariance. Children's ordered recall of events constrained by enabling relations was superior to that of arbitrarily ordered ones, indicating that, after experience with an event in…

Postformal thinking concerns questions of meaning and purpose, multiple perspectives, human dignity, freedom, and social responsibility. Curriculum and instruction based on postformalism involves detecting problems, uncovering hidden assumptions, seeing relationships, deconstructing, connecting logic and emotion, and attending to context. (SK)

Infants were tested at 5, 8, and 13 months of age for numerosity perception. Subjects observed displayed figures on a screen moving at constant speed with irregular trajectories and occasional occlusions. Results demonstrated that discrimination of units, and not of characteristic patterns, underlies numerosity perception. (BC)

Two studies examined understanding of notational representation among 3- to 5-year-olds. Children solved problems when shown cards with a picture or word indicating identity or a quantity indicator. In the easier condition, children had difficulty solving the problems as a function of their familiarity with the notation, suggesting weaknesses in…

Uses colored cube combinations to investigate surface area, volume, and axes of symmetry. (ASK)

Purpose: This study investigated the relationship between hearing loss and memory and attention when nonverbal, visually presented cognitive tests are used. Method: Hearing loss (pure-tone audiometry) and IQ were measured in 30 participants with mild to severe hearing loss. Participants performed cognitive tests of pattern recognition memory,…

The books in this series provide an essential ingredient in the transition from concrete mathematical experience to the symbolic reasoning used in algebra. They aim to guide the student in building and extending manipulative patterns, collecting numerical data, and analyzing the results. The main objective of the activities in this book is for the…