Presents two studies that explore the connection between students' language use and how they participate in small-group science activities. Describes the range of language used by groups of students while working with materials in several elementary science classrooms. Examines how students use language in small groups to discuss, clarify, and…

Examines the author's discovery of elementary students' science misconceptions derived from the books she chose to share as read-alouds. Identifies three intertwining elements that might have led intelligent, curious young learners to create impossible science from these read-aloud sessions. Uses these three elements to organize personal…

Examines the etiology of high reading ability in twin pairs. Suggests that reading ability and its cognitive correlates are on a continuous distribution, with both extremes of the distribution being similarly heritable. Supports the hypothesis that the same cognitive processes that are associated with dyslexia are important for the development of…

Evaluated elementary school students (N=198) using six mental processing subtests of the Kaufman Assessment Battery for Children (K-ABC) and three tests of planning. Results indicated orthogonal simultaneous and sequential factors emerged; the verbal simultaneous test was a good addition; and a "planning" factor identified by three…

Administered Wechsler Intelligence Scale for Children-Revised to 45 learning-disabled and 41 gifted Navajo elementary students. Interpreted performance according to Luria-Das Model of Simultaneous and Successive cognitive processes. Gifted and learning disabled students had disparate loadings for some subtests expected to involve Successive and…

Reviews research using diagrams, number sentences, and algorithms to help students learn to add and subtract; poses questions on the relationship of instruction to children's knowledge construction; and proposes a research agenda in this area. (86 references) (MKR)

Investigated the role of talk in peer collaborations using a computer-based scientific reasoning task. Analysis of children's talk showed that talk dyads produced more talk overall and more interpretive types of talks than talk-alone subjects. Results suggest the importance of peer collaborations as a social context that supports interpretive…

Compares elementary cognitive processes (memory access, memory span, simultaneous and successive processing, and word reading) to spelling performance in average and reading-disabled children. Finds no classroom ability group differences in cognitive processing. Notes consistent differences in letter memory access and word reading by poorer…

Compared performance of 28 boys diagnosed as Attention Deficit/Hyperactivity Disorder (ADHD) and 28 boys from regular education classrooms on measures of planning, attention, simultaneous, and successive cognitive processing. Groups differed significantly on measures of planning, attention, and successive processing but evidenced no significant…

Children between 7 and 13 years of age were presented with scenarios for which they predicted a result derived from 2 or 3 interacting variables. The effect of the interaction of variables was observed for all ages in familiar scenarios, but the effect diminished in scenarios of unfamiliar activity. (BC)

This study investigated taxonomic clustering and use of frequency associations as features in the semantic memory of children (n=30 in grades two and six) with learning disabilities (LD). Results suggested that, when individual child-generated word lists (i.e., meaningful) are used, children with LD may not be impaired in their ability to utilize…

Investigates the influence of word meaning on lexical processing in children and adults. Examines developmental trends in lexical decisions for abstract and concrete words. Concludes that word meaning influences lexical processing in children but that there is a developmental shift in the kinds of semantic characteristics that are available for…

Contrasts Piagetian based research with psychological research of script knowledge-based and domain-specific knowledge restructuring theories. Suggests that a cultural framework incorporating script and domain specific ideas would be more effective for studying historical understanding than Piagetian theories. Concludes that children can…

Examines the way third, fifth, and seventh graders evaluate evidence and reasoning with argumentative criteria to determine the extent to which children develop argumentation skills naturally. Finds that nearly all children adequately judged evidence and reasoning in arguments, and children exhibited systematic changes in ability to analyze…

Investigates 10-year-old children's abilities to reason by analogy in solving addition and subtraction comparison problems involving unknown compare sets and unknown reference sets. Children responded in a consistent manner to the tasks involving the basic addition problems, indicating substantial relational knowledge of these but responded in an…