Descriptor
| Age Differences | 1 |
| Classification | 1 |
| Cognitive Development | 1 |
| Developmental Stages | 1 |
| Educational Research | 1 |
| Elementary Education | 1 |
| Learning Theories | 1 |
| Science Education | 1 |
Source
| Science Education | 1 |
Author
| Gates, Larry | 1 |
| Jay, Barry | 1 |
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Peer reviewedGates, Larry; Jay, Barry – Science Education, 1978
Investigates Inhelder and Piaget's claim that ages six to nine or ten represent a stage in children's learning of the concepts of all and some. (HM)
Descriptors: Age Differences, Classification, Cognitive Development, Developmental Stages
