Here are books to suggest to upper elementary students:
I read and LOVED Mockingbird. I plan to read The Absolute Value of Mike when it comes out in the fall and Quaking is on my summer reading list.
I learned so much more about this author from her website: http://www.kathyerskine.com/Kathryn_Erskine/Home.html
Be sure to check it out. This woman really knows how to write for young adult readers!!