I use Flat Stanley to introduce the two dimensional figures concept to my class. We read the book and children were very aware of their three dimensional state compared with Stanley, who has became two dimensional due to an accident with the bulletin board in his class. My students predicted the shape his body parts would be, now in two dimension. Ex; Fingers became triangles, arms turned in to rectangles, as well as his legs. My students and I had fun interacting with ideas and comments regarding the reading of this book.