1. Core content: The core competence of educational technology is the ability of teaching design, the ability of designing and developing teaching resources, and the ability of using these media and resources to solve some problems in teaching.
2. Instructional design: Instructional design is an idea and scheme to arrange the teaching elements in an orderly way according to the requirements of curriculum standards and the characteristics of teaching objects, and to determine the appropriate teaching scheme. Generally, it includes teaching objectives, teaching difficulties, teaching methods, teaching steps and time allocation.
3. Teaching resources: Teaching resources are all kinds of materials provided for effective teaching.