“…Teacher training is especially interesting in this regard. Some studies have focused on developing and exchanging 2D and 3D teaching materials and practices, thus improving the quality of teaching (Pivec & Pauschenwein, 2011). Other authors suggest that educational virtual worlds help to improve teachers' skills in particular areas like language teaching (Cheng, Zhan, & Tsai, 2010), classroom management (Mahon, Bryant, Brown, & Kim, 2010), or thinking skills (Gregory & Masters, 2010).…”