Correspondence learning means that the school sends you textbooks, and you learn by self-study, TV lectures and using computers. Your communication with the teacher is through letters and emails, and your homework is also handed in through letters or emails. Sometimes there will be a few days of face-to-face study and examination, and you can get the corresponding certificate after passing the examination [1].
Is self-study, no face-to-face instruction.
Correspondence education is put forward relative to face-to-face education, and the main target of correspondence education is on-the-job personnel and students who can't live without work and study. Teaching is mainly self-study, supplemented by face-to-face teaching. Students register by letter, the school gives students textbooks and other counseling materials, and the communication between teachers and students is also completed by letter, so that students can complete their studies without delaying their work and study.
Correspondence: After being admitted to colleges and universities through the National Adult College Entrance Examination, courses of corresponding majors are generally offered in a planned way within three years. At the same time, classes are held on weekends or in winter and summer vacations, with teachers guiding the study, and then the teachers in the class pass the exam. It can be said that graduation is basically simple if you pass the adult college entrance examination.