Teacher effectiveness is measured by the level of communicative competence in a foreign language developed at pupils involved in learning. This requires a long teaching-learning work. In this academic work are implicated both sides teacher and students and supposes complex activities that involves cognitive, sociolinguistic and psychological aspects. That is why the study of English language can’t be considered only the memorization of some vocabulary and sentence structures with “good” pronunciation. The study of English language is a complex process that demands preparation the dedication day by day work and systematic evaluation-improvement.