Tabla de Contenidos: “…- And why we should ask where one should experience or learn that, and how to teach it, Günter Ziegler, Andreas Loos -- International Comparative Studies in Mathematics: Lessons and Future Directions For Improving Students’ Learning, Jinfa Cai, Ida Mok, Vijay Reddy, Kaye Stacey -- Transitions in Mathematics Education, Ghislaine Gueudet, Marianna Bosch, Andrea A. diSessa, Oh Nam Kwon, Lieven Verschaffel -- Part 2: Awardees' lectures -- ICMI Awards Ceremony, Carolyn Kieran, Jeremy Kilpatrick -- Mathematics Discourse in Instruction (MDI): A discursive resource as boundary object across practices, Jill Adler -- The challenging relationship between fundamental research and action in mathematics education, Michèle Artigue -- Elementary mathematicians from advanced standpoints - a cultural perspective on mathematics education, Alan Bishop -- Design and Development for Large-Scale Improvement, Hugh Burkhardt, Malcolm Swan -- Making Sense of Mathematics Achievement in East Asia: Does culture really matter? …”