Deborah Ball, Ph.D., Dean of the School of Education at the University of Michigan, talks about what makes the approach of the °ÅÀÖ¶ÌÊÓÆµ unique, and the role she sees for °ÅÀÖ¶ÌÊÓÆµ teachers in building a “professional community of teachers that is so badly needed in this country.”