This research is framed on the importance of implementing an elementary teacher’s development program based on Task Based Learning for elementary teachers who have to teach all subjects including English, even if they don’t know the language and the way to teach it. The study emerged from the researchers’ interest in exploring and finding strategies to teaching English and methodology in order to make teachers help students acquire this language. In fact, this research shows that an inspiring and informed teacher is the most important school-related factor influencing student achievement, so it is critical to pay close attention to how we train and support experienced educators who promote an English environment in elementary levels in a public school in Tenjo.