The document discusses various types and purposes of assessment in education. It defines assessment of learning, assessment as learning, and assessment for learning. Assessment takes many forms including formal and informal observation, discussion, tasks, monitoring, and comparing evidence of achievement against standards. Effective assessment provides feedback, is consistent with learning objectives, and uses clear criteria. Authentic assessment involves real-world tasks that demonstrate application of knowledge and skills. Library staff can collaborate with teachers on assessment by developing learning goals and resources or designing their own assessments.