I know I should stop being amazed but I can't help it. I'm always surprised when I speak to teachers who only know Google as a search engine. It's almost like they've been at a salad bar and have only been eating the lettuce. Google has really done a lot to provide teachers with resources to make using their online tools specific for the classroom.
Here I am giving an overview of Google for Educators. Keep watching as Lee Keller explains PuzzleMaker.