After the 20th century, with the development of modern science and technology, modern technologies such as slide show, projection, film, recording, video recording, radio and television have been widely used in education, which has expanded the scope of educational and teaching activities and improved the efficiency and quality. From 65438 to 0974, the United States launched the first "practical technology satellite" dedicated to teaching, marking the development of modern educational technology to a new stage. Since then, people have further discussed the new topics brought by the latest achievements of computer, microelectronics and optical fiber communication to the development of educational technology. American educational technology was the earliest, developed clearly and completely, and had the greatest influence in the world. Japan, Britain, Canada and other countries have borrowed the theoretical model of educational technology from the United States. On February 25th, 2004, the Ministry of Education of People's Republic of China (PRC) promulgated the Standards of Educational Technology Ability for Primary and Secondary School Teachers (for Trial Implementation). 20 18, 18 On April 3rd, the Ministry of Education of People's Republic of China (PRC) (PRC) issued the Action Plan of Education Informatization 2.0. Educational informatization is the basic connotation and distinctive feature of educational modernization, and the core content and important symbol of "Educational Modernization 2035".