By the Great Horn Spoon! - Sid Fleischman I think this is a great book to read to your 4th grader. Well because that is what I did exactly. Both he and I enjoyed learning the story of Praiseworthy and Jack and their adventures in going to California for the gold rush. It even kept me the adult entertained it definetly will keep a child's attention to. A fun addition to read when studying about the gold rush.