To assist Cree-speaking native Canadian students in English language acquisition, the Mighty Moose Reading Project was initiated with a threefold aim: to develop program materials designed specifically as supplementary beginning reading materials for native students; to determine the effectiveness of the materials in improving reading skills, oral language skills, and self-concept of students; and to improve teacher competency. A group of 610 second and third grade students were studied using ten cartoon adventure stories about a magical moose presented on a color filmstrip accompanied by Cree and English language audio cassettes. Test results indicated that the materials improved neither expressive vocabulary nor reading achievement, although subjective reports from teachers indicated student improvement in oral language, writing skills, self-concept, reading interest, and creative writing ability, and success with low-achieving students. It is suggested that the limited duration and intensity of exposure to the program rather than serious program defects may be responsible for the negative test results. (Appendixes present a teacher questionnaire and a sample booklet and teacher guide.) (DF)