The Iowa Assessment program used criterion referenced tests developed for use with students in grades 5 and 8. Participation by local school districts was on a voluntary basis. Lists of minimal objectives were developed after reviewing textbooks and objectives identified by the National Assessment of Educational Progress. These objectives were reviewed by mathematics teachers, and from them 58 were selected for the beginning fifth-grade level and 62 for the beginning eighth-grade level. Four items were written for each objective. This document presents the lists of objectives and percent of students tested who displayed mastery of each objective. (SD) Aspect of National Assessment (NAEP) dealt with in this document: Assessment Instruments (Objectives).