In Classroom Assessment and Grading That Work, Robert J. Marzano provides an in-depth exploration of what he calls "one of the most powerful weapons in a teacher's arsenal." Drawing from his own and others' extensive research, the author provides comprehensive answers to questions such as these: *What are the characteristics of an effective assessment program? * How can educators use national and state standards documents as a basis for creating a comprehensive, topic-based assessment system? * What types of assessment items and tasks are best suited to measuring student progress in mastering information, mental procedures, and psychomotor procedures? * Why does the traditional point system used for scoring often lead to incorrect conclusions about a student’s actual knowledge? * What types of scoring and final grading systems provide the most accurate portrayal of a student’s progress along a continuum of learning?