Innovations, Educational Testing Service (ETS's) corporate magazine, provides information on educational assessment for educators, school leaders, researchers and policymakers around the world. Each issue focuses on a particular theme in assessment. This issue explores the question, "What makes a great teacher?" Articles in this issue include: (1) Fighting Inequalities in Education; (2) Can "Value-Added Models" Measure Teacher Quality?; (3) For Postindustrial Economies, a "Perfect Storm"; (4) Professional Development Helps Teachers Teach "in the Moment"; (5) Putting a Personal Touch on Change and (6) ETS Classifieds.