The document discusses different aspects of assessment including definitions, purposes, and types. It defines assessment as evaluation, measurement, and ways to determine students' classroom behavior, achievement, skills, and accountability. The main purposes of assessment are to monitor teaching and student progress, evaluate student learning and programs, and gather information on student performance. Assessment can be formal or informal, formative or summative, and include tests, quizzes, grades, observations, portfolios, and more. It provides examples of assessing mathematical concepts, processes, dispositions, and procedures.