The Bethel Agency, Bureau of Indian Affairs, has now completed its 3rd year of experimental bilingual education. Beginning in 1970 with 3 pilot schools and adding 4 schools the following year, 3 grade levels in 17 Kuskokwim River village classrooms have been reached by the Primary Eskimo Program. To determine the validity of this approach, an evaluation design was conducted over a 3 year implementation period. The 2 categories of instruments used for the present evaluation were: (1) academic--Yupik literacy and numerical skills; (2) linguistic--acquisition of grammar and meaning in Yupik and English. The analysis procedure used was the method of t-test for differences between independent group means. The results of the statistical analysis are presented in 3 main sections: (1) literacy skills, (2) numerical skills, and (3) linguistic skills. In each section, the results are generally described, followed by a brief discussion of the overall patterns as a whole. Program recommendations in the final section of the report cover: (1) instructional objectives, (2) math, (3) alphabet, (4) creative writing, and (5) English as a second language. (FF)