The results of an evaluation of various aspects of the Instructional System in Mathematics (ISM) are presented. ISM is an objectives-based, computer-supported, management system which builds upon a previously developed mathematics curriculum. Questionnaires to school-based personnel and students, in-school observations, and interviews, were used to gather information on the functioning of the system. The evaluation focused on three major components of ISM: the instructional component, the assessment component, and the computer reporting component. The evaluation contains findings and recommendations for each of these components. (MK)