PhD in Physics with a dissertation about "Content structure and students' conceptions with simple electric circuits" (1972)
Research fellow in the Institute of Science Education (IPN) Kiel (1965 - 1974)
Full professor of physics education at the university of Bremen (1974)
Vice rektor of the University of Bremen (1984 - 1986)
Member of the board of the German Association for Chemistry and Physics Education (GDCP) (1989 - 1993)
Member of the NARST International Committee (1996 - 1999)
Guest professor in three Swedish universities (Kristianstad 2000, Linköping/Norrköping 2001, Mälardalen 2002 to 2011) in the frame of the Swedish graduate programm for research in sciennce and technology education (FontD)
Retired from University of Bremen 2004
Guest professor in Sweden at Mälardalens Högskola and Karlstads Universitet 2004 untill 2011, as a member of the Swedish graduate programm for research in sciennce and technology education (FontD)
Visiting professor in Nigeria at Nasarawa State University, Keffi (NSUK) from June 2011 untill September 2011, with a DAAD-Grant of the Johann-Gottfried-Herder foundation
Areas of Research
Learning processes in physics (electric circuits, quantum atomic physics, geometrical optics, sustainable energy, chemical thermodynamics); learning effects; cognitive layers; cognitive development
Currciculum development and evaluation in quantum atomic physics
Labwork in physics education
Ownership, motivation, holistic learning in mini-projects
Students' conceptions about chemical thermodynamics
Uni Bremen
