３歲以前是幼兒概念學習的基礎階段, 幫助孩子認知發展
小雞是怎麽來的？通過三層的設計告知小朋友小雞的成長過程。

Where do chick come from? Find out about the metamorphosis of a chick by playing with this three-level puzzle. A highly educational puzzle.