Developing new performance criteria needs to be an open process. Everyone is best served by an assessment process that is public, participatory, and dynamic. Open review of the assessment process means that everyone who is affected by the assessment of students' learning obtains sufficient information in order to provide appropriate input. Public consensus on performance criteria develops out of a criterion-setting process. The consensus is balanced against considerations of diversity in the process so that students continue to have multiple means and opportunities to demonstrate their mathematical power.
Open assessment involves shared responsibilities by students, teachers, and the public.
It contributes to a collective understanding of high performance criteria for mathematics and strives to narrow the gap between students' current performance and their attainment of those criteria. Everyone is best served by an assessment process that is public, participatory, and dynamic.