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| Cognitive Development | 1 |
| Cognitive Measurement | 1 |
| Cognitive Processes | 1 |
| Developmental Stages | 1 |
| Educational Research | 1 |
| Individual Development | 1 |
| Learning Readiness | 1 |
| Science Education | 1 |
| Secondary Education | 1 |
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| Journal of Research in… | 1 |
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| Pallrand, George J. | 1 |
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| Journal Articles | 1 |
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Peer reviewedPallrand, George J. – Journal of Research in Science Teaching, 1979
Examines the transition from concrete to formal thought in Piagetian theory. The questions investigated relate to the abruptness of the transition period, the simultaneity of changes across schemes, and the influence of one scheme of development on another. (SA)
Descriptors: Cognitive Development, Cognitive Measurement, Cognitive Processes, Developmental Stages
