The document outlines three types of assessment in education: assessment of learning, which is summative and evaluates student achievement at the end of a task; assessment for learning, which is formative and occurs during the learning process to provide feedback and adjust instruction; and assessment as learning, where students reflect on their own learning and set goals. It emphasizes the roles of teachers in facilitating these assessments and provides examples of self and peer assessment. Additionally, it discusses traditional marking systems and the merits of numerical versus letter grades in reporting student performance.