Some of the questions often asked about classroom assessment are: How do formative assessment and summative assessment relate to each other? Is there a real difference between them – or is there just ‘good assessment’? In attempting to answer these questions it is important to keep in mind that formative assessment (or assessment for learning) and summative assessment (or assessment of learning) refer to different purposes of assessment, not to types of evidence or methods of gathering evidence. We are, therefore, essentially concerned with how best to serve these purposes.