Use of calcium supplements may delay the onset of osteoporosis after menopause

Rogoff and colleague's findings that children do better at problem solving if they practice

solving problems with their parents or with more experienced children, constitute evidence for Vygotsky's notion of the zone of __________ development. a. approximate b. proximal c. eventual d. appropriate e. enriched

In Case's neo-Piagetian theory, children acquire central conceptual structures

A) in an abrupt stagewise transition to logical thought. B) once cognitive schemes are sufficiently automatic. C) spontaneously in a systematic transition. D) at about the same time, regardless of experience, culture, and schooling.