The sixth Conference of European Research in Mathematical Education (CERME 6) is going to be held in Lyon (France) January 28 to February 1, 2009. Researchers who wish to contribute to the conference, can submit a paper to one of 15 thematic groups. The papers for the different working groups can be submitted (electronically) until September 15. For more information, view the conference website, or the website of ERME. Registration online is possible from July 15.