File:Piagetian operations.jpg
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![File:Piagetian operations.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Piagetian_operations.jpg/800px-Piagetian_operations.jpg)
Size of this preview: 800 × 395 pixels. Other resolutions: 320 × 158 pixels | 640 × 316 pixels | 998 × 493 pixels.
Original file (998 × 493 pixels, file size: 45 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:35, 7 March 2012 | ![]() | 998 × 493 (45 KB) | wikimediacommons>Tekks | {{Information |Description ={{en|1=Mental operations according to Jean Piaget. Based on information from Ginsburg H., Opper S. (1979). Piaget's Theory of Intellectual Development. Prentice Hall, p. 152}} |Source =English Wikipedia |Author ... |
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