Classroom teachers often do not get needed information from clinic case reports on children, and children often continue to fail in classroom settings even after individualized remedial instruction. Therefore, to complement existing clinic facilities, the CHILD Center, Kentfield, California, has included in its regular teaching program a remedial-diagnosis mobile unit. The unit visits elementary schools on a monthly basis, providing teachers with opportunities to become acquainted with diagnostic instruments and to practice using remedial techniques. One teacher and one child, chosen from this teacher's class, work together in the mobile unit on a daily basis. The teacher acts as diagnostician and as remedial teacher; the child, as a "teacher's teacher." At the end of the month the two are able to continue their working relationship into the classroom. Descriptions of children's reading difficulties and sample programs designed to reduce them are included. (MD)