Where verbal deficits exist in children, one method of exceptional promise uses operant conditioning techniques to establish and modify verbal behavior. Modifications and extensions take place as the function of direct interaction between an experimenter and the child. Assuming that ideal teachers for such children, given the availability of teaching time, and familiarity with behavioral consequences for her child, would be the mother, a study was made whose objective was to develop a training program for the mother in the use of operant conditioning techniques. In four cases a mother was introduced to contingency management, and familiarized with behavioral analysis of verbal and vocal topography and function. She was then taught to apply these instructions to the specific problems of her child, so that she and the experimenter actually taught the child. After each case study the author's teaching procedure was modified so as to develop a program which incorporated the discoveries and results of the four case studies with respect to the goal. The resulting strategies represented an actual procedure which, if administered as directed, had a very high probability of resulting in the predestined behavioral changes in a mother and consequently in her child. The program was administered to a fifth case to demonstrate its validity. (Author/PT)