Scratch-Off The World. Scratch off a place whenever you visit it, or use this as a teaching tool. Whenever you teach the students about a place, scratch it off! This could also be used to teach students the locations of different places in the world.
Book to Read :MATT KEPNES (aka Nomadic Matt) has spent the last six and a half years traveling around the world and "pulling back the curtain on the travel machine." The result is this book, full of tips for traveling cheaper, longer and smarter.