Abstract
In this study, I tried intervention to promote social skill (″ heartfelt message″ ) for a class of the second grade of
the elementary school. And I examined the effect. I intervened using the enforcement of the class to promote
heartfelt messages, the reflexive sheet to look back these messages, the presentation of the subject that accepted
the individual actual situation, and the positive reinforcements by means of an evaluation seals and the praise.
As a result, heartfelt messages of the children were promoted, they called out to each other in a class, and the cooperative
attitude came to be seen. Thus, it was suggested that the intervention by positive reinforcements such
as introductive class for the heartfelt message, the presentation of the subject depending on the actual situation of
the child, the evaluation seal given by the teacher, and the praise between children, was effective to promote
heartfelt messages.