In Alabama you must have a high school diploma, or a GED. Also, there are hours required here, that each employee must go to classes and gain a certain amount of extended education for daycare workers. It is required by the Department of Human Resources here. There is a place called Applebaum that holds the classes, usually at a hotel banquet room, and the daycare usually pays for it. Also, here you are required to know CPR and keep it current., as well as have a "food handlers" card if you pass out any lunches to the children in your class. I hope this helps. I don't know the requirements for other places. I worked for a daycare the entire time I was in college so that's how I know.
Stare into a daycare center's window every day. Tap on the glass occasionally to let them know you're there. When they ask what you're doing, run away. You can't seem to eager. Eventually, when the time is right, announce that you'd like a job. This is a fool-proof system.