Studying bilingualism and second-language acquirement through conversation and language acquisition analysis helps applied linguistics researchers develop theories about language learning. This information can then be used to shape language policy and more effectively teach students.

Courses are individual classes that can be taken at universities, colleges, junior colleges, and trade schools worldwide. For even greater flexibility, many schools also offer online classes. Students can take individual classes or pursue degree programs.

Part time learning allows one to obtain part-time degrees even if one cannot attend school on a full-time basis. One can learn at his or own pace, gradually accumulating credits which count towards final qualification.