Teachers are the most important resource for developing students‘ mathematical identities (Cobb & Hodge, 2002). They influence the ways in which student‘s think of themselves in the classroom (Walshaw, 2004). In establishing equitable arrangements, effective teachers pay attention to the different needs that result from different home environments, different languages, and different capabilities and perspectives. The positive attitude that develops raises students‘ comfort level, enlarges their knowledge base, and gives them greater confidence in their capacity to learn and make sense of mathematics. Confident in their own understandings, students will be more willing to consider new ideas presented by the teacher, to consider other students‘ ideas and assess the validity of other approaches, and to persevere in the face of mathematical challenge.