In Science, the only judgement available is 'Working at the Expected Standard', or alternatively an indication that the child has not yet met the expected standard for his/her age. Each judgement band is illustrated in the Teacher Assessment framework documentation by a number of descriptors of performance. To achieve a given standard, pupils must achieve all of the descriptors within that band. For pupils with Special Educational Needs a separate judgement may be made using a separate grading system known as P-levels.