In many countries, including the
United States, it is not unusual for students to take a placement exam in a subject such as mathematics upon entering
middle or
high school to determine what level of classes they should take. Typically, students are then placed on a tracking system determined by the class they are approved to enter - for example, if a student takes
music theory to students whose knowledge in that area is more advanced than what a typical entering freshman's would be in those subjects. Scores on such exams as the
Advanced Placement,
International Baccalaureate,
SAT Subject Tests, and
British Advanced Level exams can also serve as placement tests for students in certain subjects, where a high score would enable them to get into a more advanced class than what a freshman would normally take.