Who can sign up for classes?

Anyone can sign up for a high school class. The high school courses are designed for high school students and it is expected that most students in these courses will be of this age. We support life long learning and students can be of any age. This means that people above the usual age for high school can enroll from home without the difficulty or embarrassment of appearing in a high school classroom. Also, students below the usual high school age can accelerate their studies.