...And Now Miguel by Joseph Krumgold (Multicultural & Chapter book)

Miguel Chavez was the middle child in the family who lived near Taos, New Mexico where his family lived on a sheep-raising farm for many generations. He yearned to go with the men of his family to the Sangre de Cristo Mountains where the men of the family go to protect the sheep from the weather, sickness, and wild animals. That was his secret. Miguel is unhappy because he's too young to do things his older brother Gabriel can do, and too old to be happy with the things he has like his younger brother Pedro. So Miguel decides its his last adventure of being a boy and first adventure of becoming a man by leaving home, which is where the adventure begins. 

I would use this book to discuss culture and how it is different in many places in the world. We would discuss what a culture is, what makes them different, why are they different, etc.