Elementary Mathematics Specialists: Influencing Student Achievement.

“T o whom do you turn in this school for advice or information about mathematics instruction?” (Spillane, Healey, and Parise 2009, p. 413). When teachers in forty-four schools were asked this question, they were more likely to indicate a teacher leader in their school, rather than the school’s principal or any other administrator. But, who are these teacher leaders for mathematics, and what do they do? In many schools, such leaders are knowledgeable, on-site teachers who support their colleagues’ efforts to interact about all facets of mathematics teaching—curriculum, lesson planning, student work, assessments, and school improvement. Because these teachers are facilitating on-site, jobembedded, professional learning, many school districts are formalizing Influencing Student Achievement