The Bridges SOI Model School Program is an educational service based upon the SOI (Structure of Intellect) Model School curriculum. For the middle seven months of the academic year, all students in the program complete brief daily exercises that develop specific cognitive skills delineated in the SOI model. Additionally, intensive individual activities are undertaken by a subset of students judged by school staff to be at-risk academically. This study evaluated the first year of this program as implemented at a 154-student K-8 school in Palo Verde, Arizona. Student performance was measured before and after program implementation, using the Stanford Achievement Test Series, the Cognitive Abilities Test, and the SOI Analysis Profile of Cognitive Abilities. Further, brief structured interviews were used to elicit and record perceptions of staff. Findings indicated that after one year, the principal, Lab Specialist and aide, and teachers of this school expressed a markedly positive view of the Bridges program. Further, clear gains were made by Bridges Lab participants on most of the SOI indices. Beyond Bridges program-specific measures, for two grade levels, there was evidence of reliable improvements in Stanford Achievement Test mathematics scores. However, there were no discernible effects of the program on Stanford Achievement Test reading scores or on Cognitive Abilities Test verbal, quantitative, and nonverbal scores. In contrast, there was also evidence of a reliable decline in mathematics performance at one grade level. (Five appendices include raw and statistical analysis data.) (JS)