This is one of my favorite books from when I was little. I just think it is so cute. It is about a boy who shares a cookie with his little mouse which leads to a chain of events that keeps the boy very busy. Some of the needs the mouse asks for are: glass of milk, a napkin, straw, haircut, nap, etc. There are a couple of different things I could see this book being used in a classroom. It can introduce students to sequencing and cause and effect situations. Also, students might be able to relate to some of these needs. I see this book being around a 1st grade level.