A student who wishes to treat diseases of the mouth may wish to study dentistry. Dentistry studies how to keep the teeth, gums, and other parts of the mouth healthy and how these parts interact with the body.

Students can select individual courses in accordance with their interests. Students may also structure a series of classes in a way that might achieve specific objectives such as improving job skills, pursuing new careers, or obtaining certificates or degrees.

Online learning refers to use of electronic media and information and communication technologies (ICT) in education. With online learning one has the flexibility to access their studies at any time and from anywhere they can log on.