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Derr, Alice M. – Journal of Learning Disabilities, 1985
Twenty-two 9- to 12-year-old disabled children with severe mathematics disabilities and 18 normal controls with average math achievement were given six tests of conservation. Significant group differences appeared which indicated that many learning disabled children have not yet developed the concept of conversation, even in the upper elementary…
Descriptors: Conservation (Concept), Elementary Education, Learning Disabilities, Mathematics Achievement

Peisach, Estelle – Developmental Psychology, 1973
Use and understanding of dimensional language facilitated conservation. (ST)
Descriptors: Cognitive Development, Conservation (Concept), Language Acquisition, Young Children
Modern Schools, 1973
Explains various heat transfer techniques and devices that permit the automatic and economic recovery and reuse of heat generated by lights and occupants of buildings. (Author)
Descriptors: Conservation (Concept), Controlled Environment, Energy, Heating
Cohen, David – Times (London) Educational Supplement, 1971
Descriptors: Child Development, Concept Formation, Conservation (Concept), Intellectual Development

Za'rour, George I. – Science Education, 1971
"For seven to nine year old children, it is easier to conserve weight on plasticine rather than on a rubber band or on alcohol in a thermometer . . . Boys perform significantly better than girls." (Author/AL)
Descriptors: Cognitive Development, Conservation (Concept), Elementary School Students, Weight
Strauss, Sidney; Langer, Jonas – Child Develop, 1970
Reports results of short-term training procedures upon the acquisition of the concept of conservation in children. (DR)
Descriptors: Cognitive Development, Concept Teaching, Conservation (Concept), Cues
Lumsden, Ernest A.; Kling, J. Kenneth – J Exp Child Psychol, 1969
Descriptors: Children, Concept Formation, Conservation (Concept), Learning Processes

Benner, Hazel; Wheldall, K. – British Journal of Educational Psychology, 1981
Reports a new technique for assessing conservation of liquid quantity using sealed bottles. When used with a sample of 40 six- and seven-year-olds, results correlated strongly with those of the traditional Piagetian task involving pouring. (SJL)
Descriptors: Cognitive Tests, Comparative Testing, Conservation (Concept), Primary Education

Millar, Carole; Mackay, C. K. – British Journal of Educational Psychology, 1980
Thirty five-year-olds were given number conservation tasks within their subitising and their counting ranges. For the experimental group, counters were joined by threads. These children's superior performance suggests that, when such one-to-one correspondence is a salient clue, young children can effectively apply the principle of invariance.…
Descriptors: Conservation (Concept), Cues, Developmental Stages, Testing

Protinsky, Howard; Hughston, George – Journal of Genetic Psychology, 1979
Twenty-one male and 21 female adolescents were tested individually for conservation of mass, weight, and volume. (CM)
Descriptors: Abstract Reasoning, Adolescents, Cognitive Development, Conservation (Concept)

Carlson, Jerry S.; Wiedl, Karl Heinz – Educational and Psychological Measurement, 1976
Measures of concrete operational thought and the Raven's Coloured Progressive Matrices were factor analyzed for a sample of primary students. Results indicated that primarily perceptual abilities are required for solution of the Piagetian tests, although abstract reasoning is involved in the solution of matrices and in conservation of substance…
Descriptors: Cognitive Processes, Conservation (Concept), Factor Analysis, Perceptual Development

Orpet, R. E.; And Others – Educational and Psychological Measurement, 1976
Conservation of liquid was measured on a zero-to-six scale and correlated with scores on a standardized reading test for a sample of seven year old children. Observed correlations were not significant and tend to confirm most previous research in the area. (Author/JKS)
Descriptors: Conservation (Concept), Correlation, Elementary School Students, Reading Ability

Katz, Helga; Beilin, Harry – Child Development, 1976
An empirical test of alternative claims by Bryant and Piaget concerning the development of invariance of quantities in 3- and 4-year-old children was made. Results support the Piagetian thesis in showing that those subjects respond with stereotypic strategies rather than by an invariance of number principle. (Author/JMB)
Descriptors: Cognitive Development, Conservation (Concept), Number Concepts, Preschool Children
Twidle, John – Educational Research, 2006
Background: Traditional studies of children's mastery of conservation of volume in liquids and solids have reported that conservation of volume in liquids is an easier concept to master than its solid counterpart. However, the two concepts have been assessed in different ways, with the assessment tool for solids employing a more complex process.…
Descriptors: Foreign Countries, Conservation (Concept), Science Activities, Age Differences

Hofmann, Richard J.; Trepanier, Mary – Journal of Genetic Psychology, 1975
This study was designed to assess the acquisition of conservation of number on equal addition tasks through scalogram analysis to determine if this analysis defines a scale or continuum. Ten block tasks administered to 85 kindergarten children validated Piaget's theory that cognitive development is sequential and continuous. (Author/ED)
Descriptors: Cognitive Development, Conservation (Concept), Kindergarten Children, Models