The problem is macroscopic and systematic from the definition of educational technology: according to the definition of "94" (a classic definition), it mainly involves theoretical knowledge and practical skills in the fields of design, development, application, management and evaluation.

Teaching design, software design and so on, audio and video teaching software development, multimedia production, network video production, network course development and so on.

Using modern information technology to optimize classroom teaching;

Students' intentional attention time is short, and it is easy to distract and feel tired when studying, so most students are not interested in mathematics. Internet+educational technology with multimedia attributes can truly express real life and visualize boring digital games, thus stimulating students' learning and improving learning efficiency.

For example, we are teaching the "preparatory class", the first lesson of school, which is the first lesson of young convergence. Many first-year students have known each other since kindergarten, and addition and subtraction within 10 can be counted. Many teachers think that this class can't be skipped, which is wrong. We should take this lesson seriously and let students make a quick transition from kindergarten to senior one.

At the beginning of teaching, teachers can't teach orally in the traditional way. They should make full use of modern information technology to reproduce the life situation of freshmen, and let students experience the life of kindergartens and primary schools by counting and identifying people, flowers and birds in the situation. The difference between the two makes them feel that mathematics learning is closely related to our lives, which urges students to start a new learning journey in the new learning environment.