Theoretical Origin Modern educational technology originated in the United States in the 1930s.
The development of modern educational technology in China began in the 1980s and originated in the United States. At that time, it was called audio-visual education in China.
At that time, slides, movies and other media used in audio-visual education activities, compared with the initial oral knowledge and later printed media, were used in teaching, and their communication mode jumped a big step, belonging to the category of modern educational technology, but it was not a complete modern educational technology, but only the initial stage of the development of modern educational technology.