This research explored the interrelationship among Taiwanese high school students' conceptions of learning science (COLS), self-regulated learning science (SRLS), and science learning self-efficacy (SLSE). A total of 309 students participated in the study, and the self-report survey data were collected to measure these three constructs. Four COLS…

We introduce a novel measure of abstractness based on the amount of information of a concept computed from its position in a semantic taxonomy. We refer to this measure as "precision". We propose two alternative ways to measure precision, one based on the path length from a concept to the root of the taxonomic tree, and another one based…

Children's cognitive development has a neural basis, yet children's learning is facilitated by interactions with more knowledgeable others. Young children experience such interactions in the context of the home learning environment (HLE), when parents support children's thinking and learning during everyday activities. Consequently, one way to…

The authors point to systemic-theoretical instruction (STI), which underscores the importance of abstract conceptual knowledge in schooling, and dynamic assessment (DA), in which mediators and learners function cooperatively, as examples of the theory-practice relation envisioned by Vygotsky (1987). This article proposes an interactional framework…

The purpose of the study was to determine whether individual differences in at-risk 4th graders' language comprehension, nonverbal reasoning, concept formation, working memory, and use of decimal labels (i.e., place value, point, incorrect place value, incorrect fraction, or whole number) are related to their decimal magnitude understanding.…

American thought has contained a strong metaphysical bias favoring a realist interpretation of the world, and this has led to the assumption that facts possess ontological status, however, facts are segments of human experience and students must acquire conceptual tools for extracting factual data from experience. (JD)

This study compared the spatial-geometrical abilities of 85 students (ages 5-13) with learning disabilities (LD) and 94 children without LD, matched for IQ and age. Generally, students with LD did not perform as well as same-aged students without LD, suggesting that LD students experience delayed development in this general spatial-cognitive…

Discusses critical thinking as the process of moving fluently among abstraction levels. Defines three components involved in fluency of movement: (1) knowledge, or an awareness of the existence of abstraction levels; (2) payoff, or the reason for acquiring fluency; and (3) timing, or a consciousness of abstraction levels at a given time and place.…

Describes three experiments that tested autistic children's nonverbal and verbal categorization abilities. Concludes that autistic children do not suffer a specific cognitive deficit in ability to categorize and form abstract concepts. (HOD)

A study involving 31 adults with Down syndrome investigated their ability to reason. Results found they did not differ from typically developing children, matched on expressive and verbal ability, in transitivity and non-verbal analogical thinking; however, they did differ in categorical reasoning, classical verbal analogies, and short-term…

Scientific reasoning of four elementary age students with mild mental retardation was investigated using structured interviews during tasks involving properties of air and electricity. Discourse analysis was employed to describe students' preconceptions about the natural world and how those preconceptions might be influenced by empirical evidence.…

This paper reports two experimental studies of the development of time, speed and distance concepts in children. In Experiment I subjects (12 in each of four age groups: 5-, 8-, 11-year-olds, and adults) were asked to judge which of two electric trains on parallel tracks went faster, for the longer distance, or for more time. Subject's knowledge…

The literature suggests a "concrete" to "abstract" hierarchy in concept acquisition. However, typical tests do not reflect this hierarchy. Studies have been reported in which an "abstract" option for an item was included in with a "concrete" option and with distractors. This procedure assumes that "abstract" and "concrete" behavior is on a common…

Examines the early learning experiences of great men and women mathematicians to determine whether their lives were stimulated in symbol modes that generated semiautonomous cognitive systems of acquiring, processing, and originating vast complexities of abstract mathematical concepts. (HOD)

This investigation focused on the stage of formal operational reasoning in the acquisition of astronomy concepts, and on efficacy of different instructional experiences for facilitating cognitive change in college students. Included are selected results and directions for future research. (SK)