This document is a first year report on a project which examines the effectiveness of (1) teaching the mother versus teaching the infant, and (2) using a professional versus using a paraprofessional as the intervening agent. Also being studied is the relationship between the sex of the infant and the way he is taught and the effectiveness of systematic observation of teaching behavior on the behavior of the intervenor. The 3-year study began in March, 1970, with planning and the recruitment of 200 lower class mothers and their infants. Eight paraprofessionals and 8 graduate students were employed half-time to serve as parent educators. The entire study is to be completed by December, 1971, at which time data will be analyzed and included in a final report. In this report, specific hypotheses to be tested, the general study desgin and a plan for data collection are detailed. (MK)