{"product_id":"9780778705109","title":"Stone Age Geometry: Spheres","description":"Leo teaches his cat Pallas all about spheres by applying his knowledge of geometry to their Stone Age world. Entertaining illustrations and stories provide a fun introduction to math concepts, including radius, circumference, and diameter. Information boxes accompany each story to explore real applications of spheres in the natural and designed world.","brand":"Crabtree Classics","offers":[{"title":"Default Title","offer_id":48239688253681,"sku":"9780778705109","price":27.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/5433\/7265\/files\/9780778705109_p0.jpg?v=1780358042","url":"https:\/\/shop.barnesandnoble.com\/products\/9780778705109","provider":"Barnes \u0026 Noble","version":"1.0","type":"link"}