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| Cognitive Development | 1 |
| Conceptual Schemes | 1 |
| Curriculum | 1 |
| Elementary Education | 1 |
| Elementary School Mathematics | 1 |
| Geometric Concepts | 1 |
| Geometry | 1 |
| Pattern Recognition | 1 |
| Primary Education | 1 |
| Research | 1 |
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| Bright, George W. | 1 |
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Peer reviewedBright, George W. – School Science and Mathematics, 1975
When primary children were interviewed to determine their perceptions of embedded triangles, they failed to observe overlapping triangles. Possible explanations for this and other response patterns are discussed, and implications for schooling are explored. (SD)
Descriptors: Cognitive Development, Conceptual Schemes, Curriculum, Elementary Education
