{"covers": [1194478], "first_publish_date": "1960", "key": "/works/OL1303729W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL132393A"}}], "subjects": ["Geometry concept", "Kind", "Raumerleben", "Denken", "Child Psychology", "Concept de Geometrie", "Mathematics", "Geometrie", "In infancy & childhood", "Educational Psychology", "Cognition", "Child Development", "G\u00e9om\u00e9trie, Concept de", "Geometry concept in children", "Constructivism (education)", "Child", "Infant"], "title": "The child's conception of geometry", "type": {"key": "/type/work"}, "latest_revision": 9, "revision": 9, "created": {"type": "/type/datetime", "value": "2009-12-09T21:01:35.891800"}, "last_modified": {"type": "/type/datetime", "value": "2026-02-01T02:29:40.572599"}}