The Janitor's Boy by Andrew Clements

Jack commits the perfect crime, which unfortunately leads to the perfect punishment. Having "gum patrol" is no fun, especially when your dad is the head janitor. Jack doesn't like that his dad is the janitor, you might even say he hates it. It's embarrassing. That all changes when Jack becomes an assistant janitor and is forced to get to know his dad better. 

This was a great book. I felt like I really got to know both Jack and his dad.

Born to Fly by Michael Ferrari

Bird McGill has dreamed of flying all of her eleven years. The fact that she's a girl never mattered to her. WWII is raging and Bird's dad gets sent off to fight. When a Japanese American boy comes to school, everyone is sure he is a traitor or a spy. But one night, after he saves her from drowning, Kenji and Bird accidentally discover a real spy. Will they become friends or enemies, heroes or criminals? This was an exciting page turner of a read!