Assessment of student progress is a challenge for educators who use developmentally appropriate practices such as multiage grouping. Interest in alternative types of assessment has become widespread. These performance-based, or authentic, assessments are explored in this document, which presents assessment strategies that work effectively with multiage instructional approaches. Chapter 1 begins by examining the purposes of assessment and then compares the characteristics, strengths, and limitations of conventional and authentic assessments. Chapter 2 explores methods used to assess and document the process of learning, such as observation, anecdotal records, and developmental checklists, and presents means of assessing, evaluating, and organizing authentic products of student learning. Issues involved in reporting student progress to parents and administration are examined in the third chapter. Chapter 4 considers the implications of authentic-assessment approaches for administrators and school boards, and summarizes what administrators should know about teachers' requirements to effectively implement new assessment methods. A summary publication is included. The appendix contains an overview of authentic-assessment practices in Oregon. Data were gathered from interviews with 10 educators and assessment specialists. (Contains 97 references.) (LMI)