1, adjust the classroom atmosphere and stimulate students' enthusiasm: in traditional classroom teaching, the teacher is just a piece of chalk, a mouth, a book and some simple teaching props to explain some knowledge and natural phenomena that students can't understand. Although the teacher has spent a lot of energy and time, it is difficult to achieve good results.

2. Simplify the complex and break through the teaching difficulties: the language expression in the textbook is refined and contains profound principles. How to guide students to understand and master the contents of teaching materials?

The application of modern educational technology has solved this problem. In the long-term teaching practice, proper selection of modern teaching methods and accurate use of modern teaching equipment can stimulate students' curiosity and help improve the efficiency and quality of classroom teaching.

3. Learn from others and improve the quality of lesson preparation: Now the network is developed and the information is smooth, and there are a large number of teaching materials on the Internet for us to learn and choose. When preparing lessons, teachers learn from each other's strong points through the network, broaden teaching ideas and improve the quality of preparing lessons, so that we can have sufficient knowledge preparation before class and will not let preparing lessons become a mere formality.

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.