Cave Kiddos is a book specifically designed for children with learning difficulties. Beautifully illustrated, the book introduces the child to the characters, Alk, Haha, Lala, and Zee. The entire book is a vehicle to teach the child the word, Water. Some of the characters say Wa and some say Ter until the end when it fits together for Water.
Erik Jay Cash became interested in speech development while working with his children, both delayed speakers. I don’t even pretend to know anything about learning disabilities, so I will trust that this is an effective way to teach words to a PreK or K aged child. The only thing I would have liked is that there would be several words or a complete sentence included in the book.