The lesson plan on doping was developed by a group of ten teachers from different school in germany, who worked unit (Momlok-Naaman & Eilks, 2012). This PAR group has also developed many similar lesson plans and carried them out in classroom situation (marks & Eilks, 2010). The teacher and researchers meet regularly once for a whole afternoon.
(Figure 1) Participatory Action research in science education (Eilks&Ralle, 2002)