Key Stage 1 SATs take place at the end of year 2. These are assessed and marked internally by teachers. From September 2023 the KS1 SATs will become optional and offered at the school's discretion. Key Stage 2 SATs mark the end of year 6. The results are published by the government. Students are assessed in a formal exam setting and tests are marked externally. Both SATs focus on core maths and English skills.