The purpose of this study was to investigate what type of verbal interactions between two art teachers of elementary schools and children enrich children's visual images for formation activity. Teacher and children's verbal interactions in second-grade and sixth-grade art classes were observed and analyzed in terms of coding and interpretive analysis. The results of this study indicated that teacher and children's verbal interactions could be classified into the following five types; "teacher-directed", "children-directed", "example presentation", "image enlarging", and "receptive". These verbal interactions would give children the opportunity to enrich and deepen their visual images which would play an important role for formation activity in art classes. These findings also suggested that verbal interactions would have the effects to facilitate "association" and "integration" of concepts on children's formative activity.