Shows how box diagrams and AVOW diagrams may be used to solve problems concerning networks of resistors that obey Ohm's Law. Presents outcomes and feedback from students and teachers. Concludes with suggestions as to how these techniques might be incorporated into the teaching of basic circuit theory. (Contains 22 references.) (DDR)

Responds to Needham and Baillargeon's criticisms and offers an alternative resolution of the conflicting results between the laboratories regarding abilities of infants less than 12 months to use property/featural information for object individuation. Maintains that kind concepts are acquired as infants approach their first birthday and that…

Examines the relationships and development of communities of concepts related to heat and convection among fifth grade students. Discusses the influence of familial and cultural experiences on conceptual development as well as the extent to which competing phenomena affect the development of new conceptual understandings. (Contains 49 references.)…

Advocates artificial neural networks as models for cognition and development. Provides an example of how such models work in the context of a well-known Piagetian developmental task and school science activity: balance beam problems. (Contains 59 references.) (Author/WRM)

A content analysis of interviews with an ethnically diverse group of 202 children aged 6 to 10 describes what children think racism is, and examines associations between age, ethnicity, and children's thinking about racism. Children's narratives capture many dimensions of racism, including stereotypes, prejudice, discrimination, and ethnic…

A theoretically informed model was estimated with the LISREL-VIII program using panel data from 1,384 mother-adolescent child pairs to examine processes by which mothers' adolescent school experiences measured in 1971 (Time 1) affected the adolescent school experiences of their children measured in the 1990s (Time 3) through mediating variables…

This article describes several sessions of a larger case study that examined cognitive categories for library information in a group of children in kindergarten through grade 4. While the initial motivation for the project was pragmatic in nature, theoretical issues relating to people's cognitive categories for information are examined as well.…

The authors investigated age-related changes in executive control using an Internet-based task-switching experiment with 5,271 participants between the ages of 10 and 66 years. Speeded face categorization was required on the basis of gender (G) or emotion (E) in single task blocks (GGG... and EEE...) or switching blocks (GGEEGGEE...). General…

Cognitive-behavior therapists define schemas as cognitive structures that organize thought and perception. Schemas are also viewed as having an integral influence on emotion and behavior. In this article, I examine the role of schema in family conflict and the specific interventions used in restructuring them during the course of family therapy.…

Purpose: The purpose of this paper is to propose a model for holistic professional development as an alternative to practices that have been piecemeal and curriculum focused ignoring, in particular, the critical dimension of management development. Design/methodology/approach: A conceptual framework for considering professional development needs…

College women are positioned at the juncture of adolescence and adulthood, as well as school and work. This study sought to identify whether the structural model underlying the mentoring of college women is dyadic in nature, as it is in adolescence and school settings, or networking in nature, as it is in adulthood and workplace settings.…

More than 2 decades have passed since Geoffrey Saxe's first visit to Papua New Guinea, when he began his inquiry into the highly idiosyncratic counting system of Oksapmin's people. As evidenced by his account, a quarter of a century is a period long enough to make historical shifts visible. The point of departure for this commentary on…

The use of cognitive flexibility theory as a theoretical framework for designing hypertext has been found to be beneficial for learning in ill-structured domains. However, little is known of what role the learning task plays in the effectiveness of this approach. The present study examined the relationship between task, navigation, and learning…

Chemistry is commonly portrayed at three different levels of representation--macroscopic, submicroscopic and symbolic--that combine to enrich the explanations of chemical concepts. In this article, we examine the use of submicroscopic and symbolic representations in chemical explanations and ascertain how they provide meaning. Of specific interest…

Consideration of variations in the gross morphology of concept maps can be helpful in the context of lesson planning by promoting the consideration of the multiple perspectives held by students. The three basic concept map structures are described as having particular utility at different stages of the planning process: (a) chain-type maps…