1982 Abitur grammar school Papenburg/Ems
1986 1st state examination for teaching at grammar schools (M/Ph), University of Osnabrück,
1988 2nd state examination Studienseminar Salzgitter
1988-1990 Employee in the working group "Textbook Research" in physics didactics in Göttingen
1990-1995 Research assistant at the Institute for Didactics of Physics, Goethe University Frankfurt
1996 Doctorate at the Department of Educational Sciences in Frankfurt
1995-2000 University assistant at the Chair of Didactics of Physics at the LMU in Munich
since September 2000 Professor for Didactics of Physics at the University of Kassel
