Mary had a Little Lamb by Isa Trampani is a wonderful folk song book that kids will love. The book starts with the traditional first verse and then the next verses follow the lamb throughout the farm (and into some trouble) during her day while maintaining the singability of the original story. My students loved this one and laughed as the lamb got into trouble and even tried to keep up with the song.
This book is appropriate for ages 4-8 and works perfectly as a sing-a-loud
