Description Readers learn about fish while decoding words with consonant digraphs.Fish come in all shapes and sizes and eat a variety of things. They live in many kinds of habitats around the world. Beginning readers hone their phonics skills while learning about fish. As readers practice decoding words with consonant digraphs, they gain nonfiction knowledge. Every Stairway Decodables book combines multiple aspects of the Science of Reading to support small group instruction, independent reading, and reading practice at home.