The aim of this paper is to highlight and discuss advantages and constraints of different methods applied within the field of children's thinking studies, through the test of the repeated question hypothesis validity, using the conservation of liquid task. In our perspective, the Piagetian interview is an ecologically valid context for…

This article is about the contributions children make in clinical interviews. This issue is studied by re-analysing a selection of the empirical excerpts used by Piaget in his seminal book The Child's Conception of the World. The focus is on how children use language non-literally, and especially on how they use meta-communicative markers ("as…

Presents two studies investigating whether peer interaction can advance the physics understanding of primary schoolchildren. Concerns understanding of floating and sinking. Focuses on the relevant properties of objects and fluids. Finds progress in children interacting with peers having varied views whether the variation was a result of different…

Reports children's understanding of objects with different anthropomorphic features, including a person, robot, computer, and doll. Shows that different objects did not elicit substantially different judgement patterns concerning their ability to think on their own, with the exception of a clear pattern of increased understanding of clever…

Offers a theory of how commonsense reasoning about motion may develop. Takes as fundamental the basic categories: action, object, space, cause, time, and movement. Suggests that very primitive elements could combine to provide schemes of motion recognizable in psychological accounts of infancy and generate prototypes of and rules for motion. (DK)

Presents results of longitudinal study of secondary school students. Focuses on the relationship between students' cognitive development and the understanding of dynamics. Shows that majority of younger pupils show little or no cognitive progress during three-year period whereas older pupils make reasonable progress. Concludes that different…

Reports results of Dutch study of presuppositions about teachers' diagnostic skills in determining school readiness. Lists a sequence of 5 different levels of functions and behaviors of 13 cognitive functions used in the study. Concludes that teachers accurately judged the cognitive levels of children who were shown less school ready by an…

Maintains that a major theme in Lev Vygotsky's later research was concept formation or conceptual development in child development. States that Vygotsky argued that the acquisition of mature academic concepts forms the crowning achievement of adolescence. Argues that the view raises a number of criticisms. (CFR)

Presents a continuation of previous research on a general development process consisting of successive levels in conceptualization. Explores how young children conceptualize the writing system. Considers both social background and preschool system of education. Concludes that teaching activities used in French nursery schools are less effective…