Does, in fact, the teaching profession attract people of low conceptual level, and/or do teacher education programs encourage arrestation at a low conceptual level of development? (Author)

Investigates the relationship between Keywords and conservation. (GB)

A pretheoretical model of cognitive development is proposed which is based on the empirical establishment of Gagne's cumulative learning sequences. (Author)

The conservation of distance and of length and the awareness of the horizontal and of the vertical do seem to significantly precede the measurement of length, but the results did not indicate that these four tasks have any developmental order among themselves. Bibliography, charts. (Author)

Investigated was the feasibility of inducing number conservation through training kindergarten children on reversibility tasks not related to the criterion measure. (JG)

Questions concerning the effects of familiar and alien materials, age and culture, and the etiology of conservation are examined in number and continous quantity tasks assessing conservation in Yoruba children from traditional and educationally advantaged homes. (Author/AJ)

Contains a summary of a commission study of the Adirondack Park and its recommendations for land use and access regulations intended to aid in preservation of the wilderness nature of the area. (AL)

Results indicated that the training method (discrimination) induced 8 of the 12 subjects to acquire conservation of a stable kind. (Author/DR)

It is suggested that the classical conservation justifications (reversibility, compensation, identity, identity action) are both formally and empirically inadequate justifications for the conservation deduction, particularly from a pedagogical perspective. A test for the distinction between true and empirical reversibility, that subjects know of…

Studied the development of the concepts of energy conservation and entropy in 5- to 15-year-old children. Energy conservation was not well understood until about age 15. Entropy was understood by 9- to 15-year-olds when the concept was illustrated by the gradual mixing of differently colored, rolling marbles. (Author/DB)

Attempted to determine to what extent the conservation concepts of young children change in the period between kindergarten and first grade. (DD)

Results of this study involving 120 kindergarten and first-grade boys and girls suggest that some understanding of the invariance of number appears to emerge earlier than the ability to pass the standard verbal test. (BH)