This document discusses different feedback devices used in education including assessment, feedback, portfolios, and their key characteristics. It provides details on: 1) The process of gathering, interpreting, recording, and using educational data related to objectives to evaluate student readiness, learning, skills, and needs. 2) Feedback should be goal-referenced, tangible, actionable, user-friendly, timely, ongoing, and consistent. 3) Portfolios involve the purposeful collection of student work over time to exhibit efforts, talents, progress, and achievement with student self-reflection. They match teaching assessment goals and provide multidimensional assessment of developing abilities.