In addition to the tests, teachers are required to provide teacher assessments in the core subject areas of Reading, Writing, Mathematics and Science. As at Key Stage 1, these judgements are based on a framework of descriptors, for which a child must meet all requirements to be awarded the band grade. The judgements available at Key Stage 2 differ for the subjects because of the different roles played. Writing has most available judgements as it is part of the statutory accountability judgement. Reading and Mathematics have fewer judgements as the statutory focus is on the test scores. Science has only one available judgement, as at Key Stage 1. The grades available, therefore, are: