The four sections in this Third International Handbook are concerned with: (a) social, political and cultural dimensions in mathematics education; (b) mathematics education as a field of study; (c) technology in the mathematics curriculum; and (d) international perspectives on mathematics education. These themes are taken up by 84 internationally-recognized scholars, based in 26 different nations. Each of section is structured on the basis of past, present and future aspects. The first chapter in a section provides historical perspectives (How did we get to where we are now?); the middle chapters in a section analyze present-day key issues and themes (Where are we now, and what recent events have been especially significant?); and the final chapter in a section reflects on policy matters (Where are we going, and what should we do?). Readership: Teachers, mathematics educators, ed.policy makers, mathematicians, graduate students, undergraduate students. Large set of authoritative, international authors.This comprehensive, timely book addresses social, political and cultural dimensions in mathematics education; mathematics education as a field of study; technology in the mathematics curriculum; and international perspectives on mathematics education.Past, present and future dimensions of mathematics education: Introduction to the Third International Handbook of Mathematics Education: M. A. (Ken) Clements.- VOLUME ONE.- SECTION A: SOCIAL, POLITICAL AND CULTURAL DIMENSIONS IN MATHEMATICS EDUCATION.- Introduction to Section A: Social, Political and Cultural Dimensions in Mathematics Education: Christine Keitel.- 1. From the few to the many: Historical perspectives on who should learn mathematics: M. A. (Ken) Clements, C. Keitel, Alan J. Bishop, Jeremy Kilpatrick and Frederick Leung.- 2? Theories for studying social, political and cultural dimensions of mathematics education: Eva Jablonka, David Wagner and Margaret Walshaw.- 3. Understanding and overcoming disadvalÓo