Abstract
In this paper, we propose a double loop instructional design process model which takes into account in-class modifications of instructional plan. In order to cope with unexpected in-class learners' reactions, differ from existing models, our model prescribes the modifications and redesigns next class with the result of them. Experimental classes for evaluating validity and effectiveness of our model confirmed that the instructions which are modified during a class are planned for next class, and they did not tend to be modified as compared with other instructions. Thus, it seems to reflect the actuality further more.
