Abstract
Indigenous students may find mathematics in schools difficult because there is discontinuity between cultural mathematics and school mathematics. One of the reasons for this is that their teacher’s identity as a mathematical thinker may not link to their cultural ways of thinking. In Papua New Guinea, there is a subject to assist student teachers to develop their own and hence their students’ consonance between cultural and school knowledge. In the subject, student teachers undertake a project to link culture and mathematics. The question for this research is to explore how student-teacher identity as a mathematical thinker is enhanced when they explore the cultural setting of their mathematics. From 239 reports collected over a 10 year period, 60 were analysed to explore the impact of sociocultural contexts on identity as a mathematical thinker. The document analysis informed the argument that such projects encourage teachers to express both culture and school mathematics and to identify with their cultural mathematical ways of thinking and to value these in school education.