Depending on where you live you will most likely have a school assigned to you. The schools assigned to your area are public schools which offer grades kindergarten all the way up through high school. Public schools are free and are offered to all. A few other options available are private schools or even home schooling. Private schools usually require a tuition fee and vary in price and distance from where you live. Home schooling is where the parent(s) are the teachers at home educating and teaching their children. Children that are home schooled and decide to change to public or private schools usually will need to test into their appropriate grade.
Here are some questions commonly used when picking a school.