Abstract
This research is not intended to construct logical approach of learning of art or guidance of art education but to find essential initiatives of art activities from how children expand the plastic activity. Here, we reveal a root of initiative of expression by observing children's stream of consciousness of the plastic activity. Children's plastic activity such as "sandplay" is an activity that evolves with connection of each "individual policy." That is, children generate "stream of consciousness" through the whole experience of plastic activities "sandplay" and enjoying the plastic activities in a chain of other's consciousness. In other words, "sandplay" draws up on each other's relationship or plastic consciousness and in consequent, evolves the individual's spirit, supports her/himself, to bring happiness in her/himself. This means children who participate in plastic activities are experiencing something similar to that of a real artist.
