Support for the operation of internal factors in cognitive development was provided by an obtained increase from first to second posttest scores. Two conservations were considered to be involved--conservation of the whole and of the part. (Author)

Physics concepts, developed in young children, are compared to scientific concepts which have best withstood revolutions" in science. (Author/CP)

Author's attitude toward the adaptation of Sesame Street in foreign countries is that it is worth doing, if done well, but the project should be approached critically and warily. (Author/MB)

There were no differences in the types of responses given by children in response to the question What makes clouds move?'' whether they were interviewed by telephone, by a person in normal dress, or by someone wearing clerical dress. The responses were similar to those reported by Piaget. (AL)

Investigates the developmental priority of identity conservation as contrasted with equivalence conservation using quantity and number conservation tasks. (Author/AJ)

Author discusses the importance and purpose of her course on child development that was given to young adults. (LF)