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Jin, Hui; Anderson, Charles W. – Journal of Research in Science Teaching, 2012
This article reports on our work of developing a learning progression focusing on K-12 students' performances of using energy concept in their accounts of carbon-transforming processes in socio-ecological systems. Carbon-transforming processes--the ecological carbon cycle and the combustion of biomass and fossil fuels--provide all of the energy…
Descriptors: Elementary Secondary Education, Energy, Role, Science Curriculum

DeLuca, Frederick P. – Journal of Research in Science Teaching, 1979
Analyzes the performance of the Electronic Task (ET), to test for combinatorial reasoning, over a broad range of subject ages and abilities in order to evaluate it as a substitute for the original Chemical Task (CT). (GA)
Descriptors: Cognitive Development, Cognitive Measurement, Educational Research, Elementary School Science

Lawson, Anton E. – Journal of Research in Science Teaching, 1982
Discusses whether formal thought constitutes a structured whole and role of propositional logic in advanced reasoning. Presents aspects of advanced reasoning model, considering hypothesis generation/testing as central processes in intellectual development. Argues that advanced reasoning schemata are linked by these processes and should be…
Descriptors: Abstract Reasoning, Cognitive Development, Cognitive Processes, Developmental Stages

Shayer, Michael; And Others – Journal of Research in Science Teaching, 1981
Describes a set of Science Reasoning Tasks which are valid and reliable for assessing the ability of children to use concrete and formal reasoning strategies and can be used by science teachers without professional training in Piagetian studies. Thirty pupils can be tested on each task in about 50 minutes. (Author/DS)
Descriptors: Cognitive Development, Cognitive Measurement, Cognitive Tests, Developmental Stages

DeLuca, Frederick P. – Journal of Research in Science Teaching, 1981
Reexamined Piagetian stages of males (N=182) and females (N=176), ages nine to eighteen, using cluster analysis, and sought information concerning occurrence of stages and influence of different tasks and gender on cluster patterns. Findings, among others, indicate that deviation from Piagetian stages was influenced by gender and type of task.…
Descriptors: Cluster Analysis, Cognitive Development, Cognitive Tests, Elementary School Science