Evolutionary theory constitutes the overarching concept in biology. There is hardly any other concept that is more complex, and causes more difficulties in learning and teaching. One instructional approach in optimizing the learning of complex topics is to use worked examples combined with self-explanation prompts that fit to the prior knowledge…

This study investigates the effectiveness of political science classes in Germany. It analyzes whether or not 1,071 students in the 9th and 10th grade showed increases in knowledge after participating in the lesson series. This analysis focuses on the competence dimension "subject-specific content knowledge" as well as on the…

Besides cognitive learning effects, short-term environmental education (EE) is often regarded as ineffective in intervening with participants' environmental attitudes and behaviour. However, in Germany, school classes often participate in such 1-day EE programmes because they better match the school curriculum in contrast to longer (residential)…

Clean drinking water, our most important resource, needs comprehensive protection. Due to its ubiquitous availability, the awareness of the importance of clean drinking water has partially vanished. Therefore, sensitizing within this context and improving individual ecological behavior has become an important issue in science curricula. We…