It is a school's statutory duty to report on pupil outcomes at the end of Key Stage 1 (Year 2).
Year 2 teachers use the following assessment systems to make final judgements for the end of key stage:
1. Day-to-day formative assessments - this is on-going from class work.
2. In-school summative assessment - this is at the end of a period of time such as end of term judgements/assessments.
3. National Curriculum KS1 test materials - these are administered to pupils during May 2018.
All of the above information is used by the teacher to make a final teacher assessment judgement for each of the core areas.
The video below gives a more detailed outline of the tests that children take and how the information is reported: