The Native Language Arts-English as a Second Language Program was designed for economically disadvantaged students whose native language was not English and whose ability to read and write in English and in some cases in their own tongue was not adequate. It was in operation from February through June of 1976 in 14 high schools serving 1004 students in grades 9-12. Depending upon student need, a double or single period of small group instruction in English as a second language or native language arts was provided. The audio-lingual method of language acquisition was used to provide systematic and sequential instruction in pronunciation, sentence structure, vocabulary, rhythm and intonation patterns of American English. Reading and writing were introduced in English as students became more proficient. Wherever possible, parallel programming of beginning, intermediate and advanced level classes was maintained, enabling students to move within as they demonstrated language proficiency. As a result of six months, one term and half-term testing of 792 students in grades 9-12, statistically significant differences in English reading and auditory skills were noted for 23 of the 26 groupings. Where significance was not obtained, pre to post treatment interval gains were observed. (Author/AM)