Research on the construction and optimization of educational technology theory system

With the advent of the age of information technology, the application of modern educational technology has become increasingly prominent in education. In this paper, the author analyse the construction and optimization of educational technology theory system. The theoretical basis of educational technology includes four aspects, such as learning theory, teaching theory, system theory and educational communication theory. Multimedia and network technology provide strong technical support for the learning environment advocated by constructivism, so that the virtual learning environment can be truly realized. It can be seen that the optimization of the teaching mode and method through modern technology can effectively improve the teaching management. Information education is the core issue of the future development of education, which has important theoretical and practical value.