The main contribution of communication theory to educational technology is that it summarizes the elements involved in the process of teaching communication, the basic stages of the process of teaching communication and the basic laws of educational communication. Because the education process is also the dissemination process of educational information, communication theory is an important theoretical basis of educational technology. On the basis of understanding the phenomenon and law of educational communication, it provides theoretical support for improving the functional conditions of various elements in the educational process and pursuing the optimization of the teaching process.
Because learners are the main body of the learning process, the purpose of any educational technology is to promote learners' learning. Therefore, it is obvious that learning theory, which studies the inherent laws of human learning process, plays a key role in the development of educational technology, that is, learning theory should be the most important theoretical basis of educational technology.
Applying the idea of educational technology to solve educational problems requires not only a correct view of learning, but also a clear understanding of the nature and laws of teaching process, which is the content that teaching theory should pay attention to and is also an important theoretical basis of educational technology.