I think we've met before! I'm sure I've seen you at the ATM. The ATM is the Automatic Teller Machine. The ATM is a machine that keeps track of your money, just like the teller inside the bank does. But bank tellers are only at the bank, and ATM's can be anywhere. There's usually an ATM at the bank, but they're at the mall and the grocery store, too. Can you think of other places where there might be an ATM?