Evaluated was an intervention program designed to teach reasoning skills to 13 congenitally blind students (6-18 years old). Remediation was focused on classification, conservation and abstract operations, and mental imagery development. At the conclusion of 17 months, Ss' performance was compared with that of a control group matched for age and…

This paper presents a study of the relationship between compensation and conservation in 80 children, ages 5-6. Findings are compared to those of an earlier experiment which was designed to determine whether or not prior knowledge of the compensation rule increases kindergarten children's susceptibility to conservation training experiences. It is…

This paper briefly reviews the literature concerning the Paiget-Burner debate over the roles of identify and reversibility rules in conservation acquisition, and describes an experiment designed to determine whether one group of rules is more closely related to conservation than the other. A group of children, aged 4-6 years, received tests of…

This book is a collection of the papers presented at the fifth International Interdisciplinary Conference on Piagetian Theory and the Helping Professions, held at the University of Southern California on January 24, 1975. The conference was sponsored by University Affiliated Program at Childrens Hospital of Los Angeles; 44 papers are included.…

This paper presents a study designed to clarify the role of perceptual-attentional factors in the development of conservation, and relates the results to procedures for assessing conservation. Subjects were 192 first and second graders. The number and type of perceptual cues in the conservation of liquid quantity task were systematically varied.…

Fifty educable retarded children who were determined to be nonconservers by means of three conservation pretests (discontinuous quantity, correspondence, and continuous quantity) were randomly assigned to one of five treatment groups (discontinuous quantity training, correspondence training, continuous quantity training, control, and control…

The present project provided for the development of a detailed quantitative curriculum appropriate for use in Head Start classes, trial of the developed materials with preschool children in Hawaii, and preliminary assessment of the curriculum in comparison with a more spontaneous, informal quantitative classroom experience. Directions for tasks…

This report reviews some ostensibly conflicting empirical findings which have been reported in conjunction with Elkind's (1967) conjecture that Piaget's conservation problems tap two distinct concepts. The discrepant findings which report on the order of emergence of identity conservation and equivalence conservation are discussed. An analysis of…

The effectiveness of acceleration training with children who were in a transition period was examined. Forty-eight kindergarten children were separated into four groups on the basis of their status (Preoperational vs. Transitional) and whether or not they received three sessions of inversion-negation training. The results of the immediate and…

Two studies attempted to clarify the Intellectual Tasks test assessment of number conservation by testing for two possible artifacts due to procedure: (1) Effects of preceding questions on the following test questions, and (2) operations or manipulations of the test materials by the examiner. Forty Mexican-American first and second graders were…

This study attempted to determine whether children will relinquish their belief in Piagetian concepts upon presentation of disconfirming evidence. Two age groups were tested: third- and fourth-grade and sixth-grade. Conservation of weight and transitivity of weight were the concepts examined; the discrepant feedback consisted of three trials with…

A study was conducted to determine whether a significant correlation exists between developmental age and the concept of conservation. The hypothesis was that if developmental age and the concept of conservation are related, then stages of understanding conservation will increase as developmental age increases. Ss consisted of 30 primary children…

Kindergarten and third grade children originally assessed in 1973 were retested one year later on a series of conservation and transitive inference tasks (length and weight content areas). An additional sample of matched cohort/grade subjects was assessed in the second year only to permit evaluation of repeat measurement biases for the…

This study investigated the relationships between symbolic play, reading readiness, drawing, Piaget's principle of conservation, and age, in 41 preschool children. Subjects were participants in a pre-first-grade summer program; they had had kindergarten experience but no formal reading instruction, and they ranged in age from five years, six…

This issue of "Investigations in Mathematics Education" is divided into two sections. Section one contains abstracts and critical analyses for each of six research reports. Two of the reports are concerned with conservation of number, three with instructional procedures, and one with problem solving. Section two is a listing of doctoral…