The theory of "tower of experience" expounds the relationship between the degrees of experience abstraction, which conforms to the cognitive law that people know things from concrete to abstract, from perceptual to rational, and from individual to general.

The broadcast, recording, photo, slide show, film and television located in the middle of the tower are between practical experience and abstract experience, which can not only provide students with necessary perceptual materials for learning, but also facilitate them to rise from concrete pictures to abstract concepts and theorems and form laws with the help of explanations or teachers' tips, induction and summary, which is an effective learning method. Therefore, it is not only the basis of audio-visual education theory, but also one of the important theories of modern educational technology.

Introduction to education:

Education in a narrow sense refers to specially organized school education, while education in a broad sense refers to social practice activities that affect people's physical and mental development.

Educators carry out purposeful, systematic and organized education and training on the mental development of educatees according to laws, regulations and industry norms, according to school conditions and professional titles, and use existing experience and knowledge to teach people, explain various phenomena, problems or behaviors for them, and improve their practical ability. Basically, it is to look at things with a relatively mature or rational thinking.

In it, people gradually moved from the touch of the senses to the state of cognitive understanding, forming a relatively perfect or rational conscious thinking. But at the same time, people have self-conscious thinking and their own sensory dimensions, so the conscious thinking of any education is not necessarily absolutely correct, but should understand the direction of their thinking in a perceptual way, as long as it does not deviate from the inherent essence of things.