The role of educational technology: it provides strong support and guarantee for the implementation of the new round of basic education curriculum reform, and can support and optimize the educational process. Educational technology provides rich and colorful media forms for the presentation of teaching content, powerful tools and sufficient resources for teachers' teaching and students' learning, and a convenient and fast communication platform for mutual assistance between teachers and students.

Details are as follows:

1. The rich learning resources and harmonious learning environment provided by educational technology provide technical guarantee for the democratization of education. The "student-centered" teaching design provides a powerful way to implement personalized teaching.

2. Educational technology provides learners with rich learning resources and opportunities to choose learning materials and learning methods, which frees education from the constraints of learning center, teaching material center and teacher center. Students can choose their own learning contents and methods and arrange their own learning time and space according to their own characteristics and development needs.

3, can enrich the form of teaching materials and course content.

First of all, educational technology has broken the single form of teaching materials and made the teaching content present in various forms.

Secondly, educational technology helps to break through the pre-determined, fixed and closed traditional teaching material system.

4. It can optimize the education process.

Educational technology can provide intuitive demonstrations and promote students' knowledge and understanding of things; Provide a variety of resources to expand the ways and methods for students to acquire knowledge; Provide convenient communication tools for effective consultation and discussion.