Many people have serious difficulties in understanding rational numbers, limiting their ability to interpret and make use of them in modern daily life. This also leads to later difficulties in learning more advanced mathematical content. In this study, novel tasks are used to measure 263 late primary school students' spontaneous focusing on…

A significant number of studies have examined the cognitive components of basic academic skills, which has led to major changes in both teaching and early identification assessment practices. However, the majority of previous research has focused solely on reading. This study examines the cognitive components of academic writing skills across…

The relations among various spatial and mathematics skills were assessed in a cross-sectional study of 854 children from kindergarten, third, and sixth grades (i.e., 5 to 13 years of age). Children completed a battery of spatial mathematics tests and their scores were submitted to exploratory factor analyses both within and across domains. In the…

The representation of numerical and non-numerical ordered sequences was investigated in children from preschool to grade 3. The child's conception of how sequence items map onto a spatial scale was tested using the Number-to-Position task (Siegler & Opfer, 2003) and new variants of the task designed to probe the representation of the alphabet…

This article used two studies to investigate sign and symbol mediation in children aged 8-11 years. In role play, children exist at one at the same time in objective reality and their representation of reality. We cannot observe their mental representation directly, but the issue of whether signs or symbols mediate early role play is an important…

Although the transparency of a writing system is hypothesized to systematically influence the cognitive skills associated with reading development, results of cross-language investigations are inconsistent and usually do not address this issue in a developmental context. We therefore investigated the cognitive dynamics of reading fluency of…

In general, this cross-sectional validation study supports Inhelder and Piaget's claims about the development of concepts of volume and density more easily than younger subjects. (Author/WY)

In order to study the influence of the information-processing strategy of an adult model on the subsequent strategy of children, 216 grade school children solved modified twenty-questions problems. A repeated-measures factorial design was used with the following variables: (1) information-processing of model (hypothesis scanning, constraint…

Constructivist physical education emphasizes cognitive engagement. This study examined the impact of a constructivist curriculum on in-class physical activity. Caloric expenditure in metabolic equivalents (MET) and vector magnitude count (VM) data from a random sample of 41 constructivist lessons were compared with those from a random sample of 35…

A study examined the spelling of reading disabled (RD) and average ability students within the context of the developmental lag hypothesis, which was then contrasted with a developmental difference hypothesis. Subjects were 38 regular class third graders and 18 average intelligence fifth graders receiving resource room assistance for reading…

The present experiment compared direct and vicarious transfer in the attainment of affirmative and relational concepts. Second and third grade children were randomly paired as model and observer. The latter observed his yoked model solve the initial two-dimensional problem before solving the intrarule transfer task himself. No differences in…

The consistently inferior performance of economically disadvantaged children led to this study designed to investigate how cognitive development changes with age and how it is affected by previous life experience. Classification behavior and inferential thinking were the main concerns of the study. The measurement instrument was the Matrix Test, a…

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…

The document provides lesson plans for strengthening the thought processes, including problem solving and creative abilities, of third and fourth grade mentally gifted children. The lessons are organized within the five operations of the mind as defined by J. Guilford's Structure of Intellect (SOI): cognition (10 lessons), memory (6 lessons),…

The purpose of this study is to examine the notion of a general structure in child development as seen through consistency in level of the child's response from task to task. It is hypothesized, first, that a child will show an internal orientation if he is in the final stage of development (object relevance); and second, that he will show an…