The objectives of this 1-year project were (1) to demonstrate an at-home procedure of teaching in order to improve the concept formation and language development environment of 40 children (3-5 years) residing in low income homes where the primary language was Spanish; (2) to train 11 women from the community as home teachers; and (3) to give training to the mothers of the project children so that they could improve their teaching techniques with their own children. The pretests and posttests administered were the Test of Basic Language Competence, given in Spanish and English, the Inventory of Developmental Tasks, given in Spanish, and the Maternal Teaching Style Instrument (Mother/Child Test) given in Spanish. After the year, the children demonstrated marked improvement in concept and language development; all home teachers had received 370 hours of inservice and preservice training; and mothers showed considerable changes in terms of attitudes, educational materials apparent in the homes, and upkeep of themselves and their homes. The report recommends extension of the curriculum to kindergarten, revision of training models and development of "home packets" for the project children. (AJ)