The course is developed from the study in Life Sciences and energy, till the deepening about the fossil and renewable sources, with video display, animations, little experiments, interactive games and multimedia presentations using the IWB of the renewable energy sources. After scoring a summary of key information, we switch to implement a Smart city planning workshop, drawing three-dimensionally objects with the 3D graphic application Sketchup, until build the city furnished with solar panels placed on the roofs. At the end of the trail, the educational activities are implemented in the Virtual World Scuola3D supported by a proactive and creative way to educate pupils by conscious and creative use of information and communication technologies, with the use of 3D and virtual worlds for live at three-dimensional virtual experience until they are able to design and build a three-dimensional ideal city, the “Smart city” for a sustainable future.