This report presents the findings of an evaluation conducted in the Greater Albany Public School System 8J (Oregon) to determine the effects of computer assisted instruction (CAI) in mathematics as delivered by the WICAT System 300 at the Periwinkle Elementary School. Evaluation activities were designed and conducted to determine whether the participants felt that CAI improved elementary school children's math achievement, and to explore student, parent, and staff attitudes toward the utilization of this instructional technique. The report itself consists of an executive summary and five sections: (1) an introduction; (2) a description of the existing math curriculum in the elementary school; (3) the evaluation design for measuring the changes in student achievement; (4) the results of the study; and (5) highlights of the significant findings. Major findings indicated that achievement scores improved significantly--with the most dramatic improvements among students in the second grade--and that students, parents, and staff gave high ratings to CAI. (JB)