At the expense of the mathematical content, the linguistic selections in the the lessons with working class and elite private school female students appear to be more consistently oriented towards interpersonal meaning. Furthermore, in these lessons the tendency towards a deferential position in power relations and an overall semantic orientation do not accord with that found in mathematical discourse The greater incidence of non-technical mathematical register items and consequent lack of taxonomic relations, together with the non- generic board texts, suggests that shifts or scaffolds to mathematical discourse do not occur in the lesson with working class students. (O'Halloran, 2003, p. 210, my emphasis)