Study of mathematics, philosophy and physics at the universities of Heidelberg and
Constance. Study of psychology and pedagogy at the university of education in Weingarten.
For many years teacher at school and in adult education. 1999 Ph.D. in Philosophy
of mathematics (University of Constance). Since 1999 Lecturer of mathematics and
didactics of mathematics at the University of Education in Weingarten. 2006 Habilitation
for mathematics and didactics of mathematics. 2006-2007 Guest-Professorship at the
University of Education Heidelberg. Publication of several papers on protogeometry
and didactics of mathematics, many speeches in congresses and invited lectures at
universities in Germany and abroad.
Scientific fields of activity
Foundations of geometry, Protogeometry – Didactics of mathematics, especially geometry
– Philosophy of mathematics – Phenomenology