The purpose of this study was to improve the English competence of Spanish-speaking students, to increase their success in school, and to help them develop stronger self-concepts. Control and experimental groups of students were selected from kindergarten, second, and fourth grades of elementary schools with a predominantly Chicano population. Experimental students were exposed to various techniques designed to strengthen English as a second language (ESL). To accomplish this goal, teachers of the students in the experimental group were trained by the experimenters in techniques to facilitate the acquisition of ESL skills. The control group received no special instruction. Students in both groups were measured on general school progress, English usage, general school behavior, and aptitude prior to and immediately following the administration of the experimental techniques. Details, statistical data, and results of the experiment are presented here along with discussion and recommendations. (Author/VM)