Artículo de publicación ISIThis article presents some results obtained partially during the first year of the TYMMI project. TYMMI’s aim is to strengthen the professional performance of pre-service teachers in the real classroom. Through the design of a free immersive virtual world Open Sim we have developed a technology readiness for 27 pre-service high school English teachers who are preparing their career at Universidad Católica de la Santísima Concepcion, in Chile. Initial results show some evidence of working in a three dimensional environment and in a virtual learning platform (called EV@ supported by Moodle) through Sloodle. One of the first findings we have gathered are: motivation for using these environments, strengthening ICT skills, and also technological difficulties for the development of the academic activities of interaction during teaching practices.