The presenters try to offer the most important findings of the research Evaluation of the on line ELT (English language teaching) course to develop the didactic competence through “Task based approach” as a methodological strategy to solve some methodological difficulties of EFL student-teachers with the use of the software ELT. The participants will learn about the Mosca model used to evaluate virtual tools as well as the evaluation process and the data gathered by means of 7 main categories. The presenters will also discuss how this type of research contributes to meeting the standards of doing research that combines both technological development and pedagogical intervention in Colombian EFL teacher-education programs. KEYWORDS: English language teaching; didactic competence; virtual tools