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    "title": "Optellen",
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    "description": "In de serie eenvoudig rekenen raken jonge lezers vertrouwd met getallen en rekenen door gebruik te maken van alledaagse voorwerpen. Optellen leert jonge kinderen de basis van de optelling. Elke vraag in het boek wordt stap voor stap opgelost en verduidelijkt met behulp van fotos.",
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    "publication_date_first": "2017-03-29",
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    "created_at": "2025-09-19T13:42:50+00:00",
    "updated_at": "2025-11-04T00:34:14+00:00",
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        "created_at": "2025-09-19T13:42:27+00:00",
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            "slug": "richard-leffingwell",
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            "contributor_role": "A01",
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    "genres": [],
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