*by Werner Blum*## Aims of and membership in the GDM

The "Gesellschaft für Didaktik der Mathematik" (GDM) is a scientific
society whose aims are to advance mathematics education (the didactics
of mathematics, in German: Didaktik der Mathematik), in particular in
German speaking areas, and to cooperate with corresponding societies
in other countries. Membership in the GDM is open to everybody who is
scientfically interested in the learning and teaching of mathematics
at all levels and in all kinds of institutions or
contexts. Accordingly, members of the GDM are university teachers and
researchers of mathematics education, of mathematics, of pedagogy or
psychology as well as school teachers, curriculum developers or
teacher trainers of mathematics (for all levels). At present, the GDM
has approximately 700 members, mostly from Germany, Austria and
Switzerland but also from some 15 other countries where German is read
and understood. The membership fee is DM 100.- per year and includes,
among other things, a subscription to "Beiträge zum
Mathematikunterricht" and to "JMD" (see next section).

## Organization of the GDM

The GDM is led by the President, the Vice-President, the Secretary and
the Treasurer as well as by a board of (up to) 15 representatives
elected by the members.

The GDM organizes a series of annual scientific congresses of
didactics of mathematics which take place every March at varying
places in Germany, Austria or Switzerland. The Proceedings of these
congresses are published (in German) as the series "Beiträge zum
Mathematikunterricht".

Further, the GDM is editing an international scientific journal (with
4 issues per year), the "Journal für Mathematikdidaktik" (JMD), with
original contributions in German, English or French on current
research and development in mathematics education. The responsibility
for the JMD is in the hands of three editors, elected on a temporary
basis by the officials of the GDM. The editors are supported by an
advisory board consisting of 12 members.

## Working groups of the GDM

There are several permanent "Arbeitskreise" (Working Groups) of the
GDM, among others on

- mathematics teaching and computer science
- mathematics and psychology
- mathematics and general education
- mathematics in vocational education
- mathematics in primary education
- geometry teaching
- probability and statistics teaching
- women and mathematics

For further information on the GDM and its activities see

*http://www.uni-giessen.de/gdm/
*

or contact the President of the GDM:*
Prof. Dr. Werner Blum
*

Kassel University

Dept. of Mathematics

D-34109 Kassel, GERMANY