Krashen’s 5 Hypotheses And Their Implications

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Briefly discussion Krashen’s 5 hypotheses and their implications for teaching second and foreign languages. Five hypotheses proposed in Principles and Practice in Second Language Acquisition by Stephen Krashen revolutionized the teaching of foreign languages. These hypotheses established a framework to the most common teaching approaches that are currently put into practice around the world. Each hypothesis covers an essential aspect related to classroom application which is naturally the field where we carry out our vocation. The first hypothesis, which according to Krashen himself “is the most fundamental hypothesis” (Krashen, 1982), states that there are two different processes to develop competence in a second language: acquisition and learning. The first is a subconscious process where the learners or as Krashen names “language acquirers” do not recognize they are acquiring language. They just know it is a tool to communicate with other users. On the other hand, the second process is known as language learning, which describes the conscious process of learning a language. In this process, the learners are aware of the fact that they are learning the rules of a language in order to use it accurately. These two ways of developing competence in L2 have a direct relationship with age: acquisition is associated to children and learning to adults. In the same way, error correction plays an important role at the moment of differentiating both processes. When we talk about learning a language we refer to knowing the grammar rules of the language, hence error correction supposedly ensures the understanding of a rule so that we use L2 accurately. The former assumption seems to be acceptable but: Is there evidence to support that statement? For John Truscott there is not. He claims that grammar correction in L2 in spoken language and writing should
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