A new issue of ZDM – The International Journal on Mathematics Education has been published. This issue has a special focus on Historical aspects of the use of technology and devices in ICMEs and ICMI, and guest editors have been Maria G. Bartolini Bussi and Marcelo C. Borba. The issue contains 15 articles which covers many aspects of the theme, from historical perspectives on the use of technology to a social perspective on technology enhanced learning. Here is an overview of the contents of this issue:

• The role of resources and technology in mathematics education, by Maria G. Bartolini Bussi and Marcelo C. Borba
• Historical comments on the use of technology and devices in ICMEs and ICMI, by Gert Schubring
• Exploration of technologies, emerging from African cultural practices, in mathematics (teacher) education, by Paulus Gerdes
• Concrete models and dynamic instruments as early technology tools in classrooms at the dawn of ICMI: from Felix Klein to present applications in mathematics classrooms in different parts of the world, by Maria G. Bartolini Bussi, Daina Taimina and Masami Isoda
• Mathematics learning and tools from theoretical, historical and practical points of view: the productive notion of mathematics laboratories, by Michela Maschietto and Luc Trouche
• Collectives of humans-with-media in mathematics education: notebooks, blackboards, calculators, computers and … notebooks throughout 100 years of ICMI, by Mónica E. Villarreal and Marcelo C. Borba
• Charting the microworld territory over time: design and construction in mathematics education, by Lulu Healy and Chronis Kynigos
• Graphic calculators and connectivity software to be a community of mathematics practitioners, by Ornella Robutti
• A social perspective on technology-enhanced mathematical learning: from collaboration to performance, by George Gadanidis and Vince Geiger
• Integrating technology into mathematics teaching at the university level, by Zsolt Lavicza
• Place and use of new technology in the teaching of mathematics: ICMI activities in the past 25 years, by Colette Laborde and Rudolf Sträßer
• Clarkson, P., Presmeg, N. (eds) (2008): Critical Issues in Mathematics Education: Major Contributions of Alan Bishop, Springer, New York, 257 pp., ISBN 978-0-387-09672-8, by Irit Peled
• Acknowledgements to reviewers 2009, by Gabriele Kaiser
• Acknowledgments to the members of the Editorial Board, by Gabriele Kaiser
• Advances in mathematics education: new book series connected to ZDM—The International Journal on Mathematics Education, by Gabriele Kaiser and Bharath Sriraman