Raise your hand.

That's probably one of the first things you learned when you started school. You couldn't yell for the teacher, tug on her dress or be any kind of a wild child. You had to remain civilized, calm, and orderly, and you raised your hand when you wanted attention. And in the new book, "The Teachers" by Alexandra Robbins, times sure have changed.

If you close your eyes, you can remember the exact layout of your favorite teacher's classroom. Whether it was sixty years ago or two, you recall where the Flag was, where your desk sat, and where the coats went. As a journalist, Alexan...