The document discusses various types and purposes of assessment in education. It describes traditional assessment as occurring at the end of a unit and involving individual testing on knowledge through tools like multiple choice questions. Constructivist assessment focuses on the learning process and is formative, aiming to improve student learning through discussion and questioning. The document outlines the roles of teachers in traditional versus constructivist classrooms. It also discusses dimensions of learning, including attitudes, acquiring knowledge, extending knowledge, using knowledge meaningfully, and developing thinking habits. Different types of assessment are described, such as for learning, of learning, and as learning. The relative merits and demerits of assessment for and of learning are compared.