The system is divided into pre-primary, primary, middle, secondary (or high school), and higher levels. Pre-primary is usually composed of Lower Kindergarten and Higher Kindergarten, where primary reading and writing skills are developed. Primary school includes children of ages six to eleven, organized into classes one through five. Secondary school pupils aged eleven through fifteen are organized into classes six through ten, and higher secondary school students ages sixteen through seventeen are enrolled in classes eleven through twelve. India has a multitude of international schools spread around the country.