To succeed in STEM, students need to connect visual representations to domain-relevant concepts, which is a difficult task for them. Prior research shows that physical representations (that students manipulate with their hands) and virtual representations (that they manipulate on a computer) have complementary advantages for conceptual learning.…

The popular conception of illegal drug use as inevitably pushing users toward compulsive drug abuse, and the ideological stance that drug use is a moral weakness, are offered by many as justification for punitive drug control. Challenging this view are the research on "set and setting" as determinants of the consequences of drug use, and…

A seriation task (assembling a set of nesting cups) was used in this study to examine developmental changes in young children's ability to restructure a situation. Forty young children, eight each at 18, 24, 30, 36, and 40 months of age, participated in the study. Each child was presented with five nesting cups and was told he or she could play…

Interpretation of experimental tasks is influenced by knowledge of the language used, by assessment of what the experimenter intends, and by how subjects themselves would normally represent the physical situation. Whether these processes in which children engage in cognitive studies differ from those employed by adults in similar tasks was…

One of the most important capacities which children employ when learning language is the capacity to generalize. A child who hears an utterance of a verbal expression while perceiving a particular object (or action, aspect, etc.) becomes normally able to apply the expression not only to this object but also to all those objects which, for him, are…

Sociological literature on careers reveals that there are four major approaches framing career study, i.e., developmental, objective-empirical, normative, and interactive perspectives. Analysis of these approaches points to an orienting conceptualization of career based on the core characteristics of centrality, duration, and public…