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.
Modern educational technology refers to the theory and practice of using modern educational theory and modern information technology to realize teaching optimization through the design, development, utilization, management and evaluation of teaching and learning processes and resources.
There are two exact definitions of educational technology, which are quoted in various documents: one is the Dictionary of Education 1990 published by Shanghai Education Publishing House, which defines educational technology as "the sum of all technical means adopted by human beings in educational activities, including materialized technology and intelligent technology."
Understand the connotation of educational technology;
1. Educational technology is the general name of various materialized means used in the educational process. From the most basic blackboard, chalk, text teaching materials, teaching AIDS, projectors, slide projectors, televisions, wired and wireless public address systems, video display tables to multimedia computers; CAW closed-circuit television teaching network system and computer bidirectional transmission interactive network system are both hardware components of educational technology.
2. Educational technology is a carefully selected and reasonably organized learning textbook. These learning materials should not only meet the needs of society and students' personal learning, but also conform to the cognitive laws and be suitable for students' learning. This is a software component of educational technology.
3. Educational technology is also a method to design, implement and evaluate the teaching process. Such as Comenius' intuitive teaching method, Herbart's four-stage teaching method and the heuristic teaching method advocated by Confucius, an ancient educator in China. This is also an integral part of educational technology.