Described is a project in which poor Black and White parents were trained by paraprofessional visitors to use simple stimulation activites with their infants. Results of Stanford-Binet Scores at age 6 are said to indicate that four of the seven experimental groups scored significantly higher than control groups; and followup at grade 3 indicated that of 30 children who stayed in the program longer than 1 year, 28 attended regular classes as compared to only 14 of 20 controls. Considered are factors related to children's outcome (including mother-child interaction and the mother's view of locus of control); changes in the mothers (including greater self esteem); and class differences in childrearing. Other topics dealt with include ideas for a prevention program, effects of changes in teaching methods, parent-child interaction patterns; and methods of involving parents in school. (CL)