This course provides the scientific fundamentals and concrete tools that facilitate extension in the context of ecosystem management. In the context of real-life and simulated cases (role plays) we conduct situational and audience analysis and base the selection of adequate strategies and extension methods on these two assessments. Techniques and skills of organising and moderating meetings, preparing and delivering presentations are trained in practical exercises. The use of different media and equipment is assessed and tested with peer students, including mobile applications, social media, internet-based learning. All above is embedded in a communication strategy and plan. The success of extension is measured with the help of quantitative and qualitative evaluation techniques.