The National Curriculum (End of Foundation Phase Assessment Arrangements and Revocation of the First Key Stage Assessment Arrangements) (Wales) Order 2011 art 3

art 3 Teacher assessment — general

(1) The head teacher must make arrangements for each pupil to be assessed by a teacher in each relevant area of learning in accordance with the provisions of this article and for a written record of the results to be made by the teacher. (2) The pupil shall be assessed and a written record of the results made by the teacher not later than twenty working days before the end of the summer term.