Description Beginning readers learn all about sled dogs while decoding words with s-blends. Sled dogs work as a team to pull people across snow and ice. Beginning readers hone their phonics skills while learning all about these hard-working animals. As readers practice decoding words with s-blends, they gain knowledge. Every Stairway Decodables nonfiction book combines multiple aspects of the Science of Reading to support small group instruction, independent reading, and reading practice at home.