{"title": "Math Picture Puzzles Grade 1 (Practice Makes Perfect (Teacher Created Materials))", "covers": [2802029], "key": "/works/OL9215950W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL3278589A"}}], "type": {"key": "/type/work"}, "subjects": ["Mathematics", "Study and teaching (Primary)", "Activity programs", "Picture puzzles", "Mathematical recreations", "Math\u00e9matiques", "\u00c9tude et enseignement (Primaire)", "M\u00e9thodes actives", "Jeux d'observation", "Jeux math\u00e9matiques"], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-11T00:03:04.128770"}, "last_modified": {"type": "/type/datetime", "value": "2022-12-10T14:53:13.806926"}}