This was a training activity for pre-service teachers. The overall lecture “Multimediale Fähigkeiten und Fertigkeiten für den naturwissenschaftlichen Unterricht” (Multimedia skills and capabilities for science education) tries to enhance pre-service teacher’s multimedia skills for science education. In this framework, the Best Practice “Energy – Today and Tomorrow” was presented to show a computer simulation as an eLearning-component linking inquiry-based science teaching with green issues. First the teachers got general information about learning with multimedia in science class, especially with simulations. Later the pre-service teachers were requested to test and evaluate the whole Best Practice in the context linking multimedia with environmental education. They worked in groups of two and had to test especially the eLearning part of the Best Practice. Afterwards the students evaluated and discussed the different aspects of this Best Practice.