One of the positive points of teacher-center classes is that teachers have total control of the development of the class (Knowles, 1984). This means that the teacher has the control over key aspects of the class such as time, pace and even the same content of the lesson. In short lessons, such as the ones we have at RosEA-X, managing time is a paramount aspect; for that reason, teachers need to regulate the pace of the session as well as the content included in class. The aforementioned means that teachers need to devote the necessary time to specific topics keeping control of the learning environment. In a student-centered environment, controlling time is hard and teachers run the risk of not completing the lesson as planned. This risk can be avoided in a teacher-centered class.

A second advantage of teacher-center classes is the opportunity teachers have to select and maximize input for their students. There is no doubt that input is essential in language learning (Krashen, 1977; VanPatten, 1996). Input is necessary for students to develop the understanding of the language; and, in that way, they have tools to use the linguistic resources acquired during comprehension (Lightbown, 1992, Lightbown et.al, 2002). As the input hypothesis states, speech cannot be taught; it emerges as a result of enhanced comprehension. This means that input is key in the acquisition of the language; for that reason, if teachers control the input during the lesson, students might have better resources to learn the language.

A final advantage of teacher-center classes has to do with the freedom to choose the most appropriate instruction methodology to teach the language. Research has demonstrated that explicit instruction is more effective than implicit instruction (Martinez-Flor and Alcón, 2010). In other words, explaining a topic explicitly is better than teaching it implicitly; in that way, in a teacher center environment, the teachers can decide to explain directly an aspect of the language saving time and also maximizing the chances for students to acquire the piece of language.

To sum up, a teacher-centered approach can be an effective environment to learn the language. In this type of classes, the teacher has control over key aspects of the lesson like time management, the quality of input and the explicitness of the instruction. Administering those aspects wisely can lead students to a better understanding and, at the same time, a more accurate use of the language.