Educational communication is an activity that educators choose appropriate information content according to certain purposes and requirements, and transmit knowledge, skills, ideas and concepts to specific educational objects through effective media channels. It is an information exchange activity between educators and educatees.
Educators are the controllers of the system, the arrangers of various learning conditions and the senders of educational information. Including teachers, textbook writers, education administrators, etc. A teaching machine can also be an educator.
Educational information is the content of educational communication, which mainly refers to various courses in the form of knowledge. It must be transformed into some kind of symbol and then spread through some kind of "medium".