Track your class's reading on a world map. Every time a student reads a book set in a different country or featuring characters from a different culture, they add a pin (or sticker, or string) to the map. Set a class goal: can we "visit" every continent by the end of the year?

This turns reading into a collaborative game with a visual progress tracker. It also naturally pushes students toward diverse literature without it feeling like a mandate — they want to fill in the blank spots on the map, so they seek out books set in places the class hasn't "visited" yet.