The UI School of Art and Design will offer 12-week Saturday morning classes for adults and children, beginning Sept. 11. Separate classes for adults and students in grades seven through 12 will offer instruction in a variety of media, including drawing, watercolor and printmaking. The classes for preschool children and students in grades one through six will provide experiences in painting, sculpture, drawing and crafts. The workshops function as laboratories for students majoring in art education. The student instructors will teach under the immediate supervision of members of the art education staff. A registration fee of $50 per student will be charged. More information is available at 123 Art and Design Building or by calling 333-0418.