This document discusses key principles of formative assessment and effective practice in assessment. It outlines that assessment should be learner-centered, provide a holistic view of learners, and be integrated with teaching and learning. Effective formative assessment enables teachers to reflect on teaching quality, identify student needs, and determine appropriate work levels. Types of formative assessment include feedback through marking, peer/self-assessment, and using summative assessments formatively. Formative assessment benefits learners by helping them reflect on learning and progress. The importance of effective feedback is also discussed.