Virtual environments can be used for tutoring in any field of education, whether science, arts, humanities, history. We direct the reader to a few of the many examples of this in §2. In this article we will analyze the use of immersive 3D virtual environments in creating an extended classroom – from physical to virtual space. In order to evaluate the potential benefits and barriers of setting a virtual classroom in a 3D immersive environment, a study was conducted as a working example (case study) of how a teacher can monitor their students learning through the use of virtual environments. With the evolution of Web and Games Industry many 3D environments – or 3D worlds - are available in the market (World of Warcraft, Blue Mars, IMVU, MOOVE, ActiveWorlds, Second Life®...). Of all the virtual worlds and gaming environments that are available, we chose Second Life® (SL®) because it offers the best approximation to the real world and offers enormous flexibility to its users. Other environments are less open and don't offer the same degree of freedom to create. However, this flexibility comes at a cost, since the learning curve is much steeper.