I. Explanation of Nouns

1, correspondence education

Key points: printed materials are the main learning resources, mailing, submitting and correcting homework are the main communication means, and face-to-face tutoring for a certain period of time is the auxiliary teaching means.

2. Distributed learning

Answer point: It is a teaching model, which allows teachers, students and content to be distributed in different non-central places, so that teaching and learning can occur independently without the limitation of time and space.

3. Distance education

Key points of answer: The general name of all kinds of education organized by schools or social institutions, in which teachers and students are relatively separated in time and space, students are mainly self-taught, supplemented by teachers, and teaching and learning activities are linked, interacted and integrated through various educational technologies and media resources. 1, learning package

Key points: The general name of all learning materials provided by distance education institutions to distance learners in terms of courses.

4. Teaching interaction

Key points: In the learning process, learners communicate and interact with the learning environment with the aim of constructing the correct meaning of the learning content.

5. Distance learning circle

Key points: The new concept of distance learning circle is used to express the time and space of distance learning, which constitutes the micro-level of distance education, taking students as the center, paying attention to students' autonomous learning, and integrating learning resources and learning process. Its essence is the space-time area of interaction among students, teachers and courses in the distance education operation (teaching and learning) system.