Discover Reading Early Reader It's a bird? It's a plane? It's a helicopter! Learn all about helicopters in this informative level 4 reader. Each page features a full-color photo of a helicopter with several sentences of information. At the end of the book, there is a Key Words list (featuring words like thrust and navigation) with activities for your student to complete. Perfect for homeschool families, classroom enrichment and more, HELICOPTER is part of the Discover Reading series from Xist Publishing. As a level 4 reader, it introduces new words about a specific topic and informs while entertaining.