Gymnasiums have its courses ("smerovi"), and the most common ones are the General Course, Science-Mathematics Course, Humanities-Linguistics Course, Information Technology Course and the Bilingual Course. Students can only choose one course (they do it when they write their wish list for preferred schools and courses) and they usually don't change it until they graduate. Every course has the same number and list of classes, but the difference is in their schedules (for example, the Humanities-Linguistic Course might have English classes five times a week, while the Science-Mathematics Course offers two English classes a week).