1. Editorial

   • Konrad Krainer

   OriginalPaper Pages: 75 - 81

2. What Constitutes Good Mathematics Teaching and How it Develops: Nine High School Teachers’ Perspectives

   • Patricia S. Wilson
   • Thomas J. Cooney
   • David W. Stinson

   OriginalPaper Pages: 83 - 111

3. Professional Communities in the Context of Teachers’ Professional lives: A Case of Mathematics Specialists

   • Susan D. Nickerson
   • Gail Moriarty

   OriginalPaper Pages: 113 - 140

4. Teachers’ Discussions Of Students’ Thinking: Meeting The Challenge Of Attending To Students’ Thinking

   • Michelle T. Chamberlin

   OriginalPaper Pages: 141 - 170

5. How Students Verify Conjectures: Teachers’ Expectations

   • Tomas Bergqvist

   OriginalPaper Pages: 171 - 191