Minimal brain dysfunction (MBD) refers to a significant disturbance in several areas of a child's functioning. This condition includes learning disability, lack of motor coordination , auditory and/or visual perceptual disturbances, hyperactivity, and problems in concentration and attention span. Also involved is a heavy overlay of personality and adjustment problems which lead to behavior difficulties. The cause of this condition is obscure, but several theories prevail. Prenatal development, the perinatal process, and postnatal illness are all factors that may be involved. Hereditary factors may account for a large percentage of cases, as well as sensory and cultural deprivation. Help for the braindamaged child involves giving emotional support, understanding weaknesses and strengths, and psychiatric help or family counseling when advisable. Special classes for MBD youngsters focus on building skills and self-concept so that the children can return to the regular classroom as soon as possible. The teacher of the MBD child must be emotionally stable, well organized, extremely creative and resourceful, and capable of understanding and empathy. (JF)