I. The Structure of ICAI
ICAI, which is intelligence teaching system and also known as intelligent tutor system, is a kind of the latest application mode of computer assisted instruction. This kind of mode takes artificial intelligence science, cognitive science and noetic science as theoretical basis, and studies characteristics and processes of human thinking to seek learning cognitive mode. To design individualized computer assisted instruction system can help students to obtain knowledge through individual learning, which could achieve genuine individual teaching and intelligent teaching activities.