Reports on a study designed to investigate secondary school students' misconceptions of conservation principles and fields. Results indicate that misconceptions appear to persist and that students were unable to transfer knowledge readily. Also teachers appear not to be fully aware of students' misconceptions. (ML)

Reports the results of a study in which children below the age of eleven were tested on their ability to perform several tasks of class inclusion and a task relating to the conservation of weight. (JR)

Discusses use of a concept map in developing, teaching, and assessing the concept of "away" (as indicated by physical/chemical changes or changes in energy/human perception). A copy of the map and an activity (using a flashbulb) to get children thinking about what it means to throw something away are included. (JM)

Two studies indicate that Oksapmin children progress from premediational to mediational phases in their use of body parts to compare and reproduce number and that this change generally occurs prior to the development of concepts of number conservation. A third study shows that this general change is manifested in culturally specific ways.…

A former editor of this journal, 1967-69, selects an outstanding article from her tenure for its significance as the beginning of important studies in mathematics learning in young children. The article selected presents a modified technique for assessing a young child's acquisition of length conservation while eliminating or reducing the…

The author describes a method of teaching number conservation, focusing on its successful use a 16- year- old severely educationally subnormal boy. (LS)

Children in grades 1, 3, and 5 and college students were given a variety of judgment tasks contrasting the comparison of quantity with the comparison of proportions to determine whether the understanding of proportions develops before formal operations. Results indicated that the comprehension of abstract relations requires formal operations.…

The development of children's understanding of the permanence of various social roles was examined in 16 four- and 16 five-year-old children. A social role conservation battery consisting of 12 items on the permanence of self-identity, gender, child and sibling roles was given under three temporal conditions: the past (i.e., when you were a baby,…

Two groups of kindergarten children had activities involving the transitive property of matching relations and length relations, respectively. Both groups had activities involving transitivity of weight relations. A control group had instruction only on relations. Pretests of Matching Relations, Length Relations, Matching Relations Conservation,…

The project, consisting of five experiments, attempted to develop remedial procedures and materials for retarded children with learning deficits in the area of arithmetic. Standardized training procedures were devised to facilitate development of operations (conservation, ordination, cardination, and classification) which J. Piaget describes as…

Studies five-year-olds' relative number judgements of small and large number displays with and without perceptual aids. Children were found to respond to local rather than global density differences and to benefit from the provision of perceptual aids on both small and large number displays. (Author/AS)

Implications of this study on child-development theory, education, and psychotherapy are discussed. (MB)

Lower-class children required significantly more training task repetitions to learn a conservation task than did middle-class children. (Authors)

This study investigated mathematical behaviors on inequality tasks using two alternative response measures in preschool subjects. (Author)