The externalization support system of self-explanation for learning a problem-solving process - Congitive perspective in the operation planning

When a learner nose various tasks in the computer the interaction of the learning support system is so a transition which happens inside the learner: At that time, educational effect such as knowledge structuring occurs due to externalization of representation. We developed the prototype system in so that externalization of self-explanation of the problem-solving process was supported. A learner externalizes the self-explanation "How do I solve the exercise?" She/he explains using not only words bur also diagrams, in order to exploit the effect of diagrams. Self-monitoring happens with self-explanation, and the acquisition of a problem solving strategy on is learned. In this paper we construct a model of externalization on the computer and consider the occurrence of cognitive load. We propose the presentation of an operation list as a method of load reduction. The memory dependent evaluation becomes more coherent by such a list. In other words, the cognition perspective improves.