A really simple exercise that helps children to get rid of the stereotypes of the drawing and to have fun with colors. The line of the scribble has been made drawing continuously on the paper with a felt pen, without ever remove the tip from the sheet. The movements of the pen are wide and free and move around into the entire space of the paper. After a set time the line stops. Each student subsequently, has colored the spaces created by this line with felt tip pens, creating nice abstract images.