Tests Piaget's assertion that the anticipation of conservation among otherwise nonconserving children is a pseudoconservation since it is limited to those lacking knowledge of covariation. Number, area, and length conservation tasks and a covariation task were given to 96 children from kindergarten through the fifth grade. (Author/SS)

Suggests some difficulties and challenges in understanding and teaching Piaget's new theory. Outlines some differences between Piaget's new and standard theories, such as the diminished status of the emergent skills that mark the onset of concrete operational thinking and the perception of achievements in concrete operations as empirical…

Tests Piaget's assertions regarding compensation, identity, and conservation using a modified replication of Piaget and Taponier's classic study of liquid conservation. A total of 96 children in kindergarten and first grade were presented with a sequence of anticipation-of-liquid-conservation, anticipation-of-water-levels, and standard…

This study examined the effectiveness of the Early Childhood Curriculum (ECC) as a viable instrument for the immediate acceleration of cognitive development among preschoolers. During an eight month tutorial project, ten 3-year-old children received one 15 minute lesson each week from the curriculum. (Author/SB)

Provides clarification of the Piagetian theory of the development of conservation and reviews the state of knowledge regarding the theory. It is concluded that reasonable evidence exists suggesting that conservation by identity precedes and induces the emergence of conservation by inversion and compensation. (Author/DB)