Abstract:

In order to overcome the shortcoming of traditional CAI（Computer Assisted Instruction）, the main module in double active ICAI（Intelligent Computer Assisted Instruction）system was constructed. A student model in this ICAI system is, all of parameter lists in student model are described. On the designing of diagnostic module and the process of data acquisition was emphasized by diagnosticing. The cognitive student model is the foundition of ICAI system. The ICAI can stimulate interest and motivation, and can improve the effects of instruction.

Key words: double-active, intelligent computer assisted instruction(ICAI), student model, diagnostic module