This final report describes achievements and activities of the Native American Science Outreach Network (NASON), a 40-month program of the University of Washington which provided 4-week summer institutes for high school and preservice science teachers of Native American students. The goal was to update the teachers' chemistry skills, and to integrate chemistry labs and computerized curriculum techniques with training in tribal learning styles and cultural characteristics. The ultimate goal was to increase the participation of American Indians and Native Alaskans in chemistry programs at the university level, and in science-related careers. Middle school teachers, paraprofessionals, and high school students were added to the program for a three-year total of 128 participants. NASON linked teachers and university staff through e-mail, established weekend teacher workshops for follow-up and evaluation activities, and visited participants' schools. The project also produced curriculum and resource guides, and a CD-ROM guide to the tribes of Washington State. Evaluation indicated that participants became more knowledgeable and more comfortable about both science and cross-cultural relationships. After an executive summary, individual sections provide information on the project's purpose, background and origins, description, evaluation/results, and conclusions. Appendices provide schedules for each summer institute and evaluation reports. (DB)