I studied theoretical physics and mathematics at Vienna University, made my PhD about neutron diffraction at the Atomic Institute of the Austrian Scientific Academy. I then worked as teacher in several high schools, wrote textbook chapters about the history of science, and was engaged in radical school reform at an experimental school before turning to educational science. My research at the University of Klagenfurt in Austria was about student understanding and interest in science, explorative learning, critical thinking, and teaching quality and assessment techniques, including self-evaluation. I collaborated with the German IPN Institute for Pedagogy of Science in a project about independent learning and self-determination. For the international PISA study I wrote a critical review of the test items and an empirical study about the mismatch between high school student interest in science and their dislike of science as a school subject. I co-developed PFL-NW, a two year university course for in-service science teachers based on investigation and reflection about their classroom activities with action research methods. I am also a team member of IMST, the nationwide educational research and development project in Austria. We enable teachers to learn to write and publish reflective papers about their work based on empirical data like interviews, observations by critical friends, video documentations, sometimes questionnaires. These activities had a high impact on the Austrian teacher community. In the last couple of years my research interests shifted to methodological foundations of action research, general epistemology and functionality of school systems and academic institutions. Recently I became more and more fascinated and interested in the concepts of Knowledge Democracy and Cognitive Justice which appreciate the visionary world views and epistemologies of the premodern tribal societies in Australia, Africa, Asia and the Americas and their potential to contribute to the solution of the massive ecological, social and cultural problems of humanity and the planet which were caused by the modern post-enlightenment societies in the global north. I was happy to be one of the facilitators of the First Global Assembly for Knowledge Democracy in Cartagena 2017.