The APP pilot project in primary schools developed from similar projects for mathematics and reading and writing in Key Stage 3 (Key Stage 3 mathematics and Key Stage 3 English). The Qualifications and Curriculum Authority (QCA) and the Primary National Strategy (PNS) worked with local authorities (LAs) and schools to develop APP. During 2005/06 the assessment model was piloted with 60 schools in seven LAs, and in 2006/07 a pilot of the APP model and materials was carried out with teachers in Years 3 to 6 from 100 schools in 11 LAs. The project was able to explore in some depth the APP approach to teacher assessment in mathematics and reading and writing, as well as the related issues of reliability and consistency of judgements (see How to secure APP judgements). All the materials have been extensively trialled and revised in the light of feedback from schools and the findings from an independent evaluator.

Further information on the APP approach to teacher assessment is available on the QCA website.