Abstract
To be considered numerate beyond 2 000 preservice teachers need to know more than som.ebasic
mathematical concepts and skills; they need to know and value the mathematics and know themselves
tbbe competent andagentic in its articulation. Teacher education programs attempt to realise these
ideals :but are hampered by what I consider to be untenable. assumptions regarding agency for. preservice
teachers; that rational reflection leads to progressive change, and that knowledge is power. These
assumptions are based on humanist versions of a person where agency is taken to be a feature of any
adult, human being. In this paper I argue rather for a poststructuralist understanding of preservice
teachers as discursively constituted through power relations, both in schools and in tertiary education,
where agency, or the lack of it, lies in the constitutive power of discourse. I explore what this might
mean for mathematics teacher education beyond 2000.