First graders read the book "It's Okay to be Different" by Todd Parr in library class. I love this book for its colorful, simple pictures and the discussion starters on each page. Each sentence starts with "It's okay to..." (For example, "It's okay to say no to bad things. It's okay to eat macaroni and cheese in the bathtub. It's okay to need help.")
After reading the book, I showed the first graders this example of a Vermont preschool's work. They had read the book, too, and they created their own pages in the style of the book.
Our first grade students came up with an "It's Okay" sentence that they wrote and was typed by Mrs. Eley. Then they learned how to cut out shapes to illustrate their sentence. I then displayed their work in the hallway.