the natural approach to second language acquisition

II. THEORETICAL BASIS OF THE NATURAL APPROACH

II.1. Theory of Language

Krashen regards 'communication' as the main function of language. The focus is on teaching communicative abilities. The superiority of 'meaning' is emphasized. Krashen and Terrell believe that a language is essentially its lexicon. They stress the importance of vocabulary and view language as a vehicle for 'communicating meanings' and 'messages'. According to Krashen, 'acquisition' can take place only when people comprehend messages in the TL. Briefly, the view of language that the Natural Approach presents consists of 'lexical items', 'structures' and 'messages'. The lexicon for both perception and production is considered critical in the organization and interpretation of messages. In Krashen's view, acquisition is the natural assimilation of language rules by using language for communication. This means that linguistic competence is achieved via 'input' containing structures at the 'interlanguage + 1' level (i +1); that is, via 'comprehensible input'.

II.2. Theory of Language Learning

(1) The Acquisition-Learning Hypothesis

Krashen, in his theory of second language acquisition (SLA)suggested that adults have two different ways of developing competence in second languages: Acquisition and learning. "There are two independent ways of developing ability in second languages. 'Acquisition' is a subconscious process identical in all important ways to the process children utilize in acquiring their first language, ... [and] 'learning' ..., [which is] a conscious process that results in 'knowing about' [the rules of] language" (Krashen 1985:1).

Krashen believes that the result of learning, learned competence (LC) functions as a monitor or editor. That is, while AC is responsible for our fluent production of sentences, LC makes correction on these sentences either before or after their production. This kind of conscious grammar correction, 'monitoring', occurs most typically in a grammar exam where the learner has enough time to focus on form and to make use of his conscious knowledge of grammar rules (LC) as an aid to 'acquired competence'. The way to develop learned competence is fairly easy: analyzing the grammar rules consciously and practising them through exercises. But what Acquisition / Learning Distinction Hypothesis predicts is that learning the grammar rules of a foreign/second language does not result in subconscious acquisition. In other words, what you consciously learn does not necessarily become subconsciously acquired through conscious practice, grammar exercises and the like. Krashen formulates this idea in his well-known statement that "learning does not became acquisition". It is at this point where Krashen receives major criticism.

(2) The Natural Order Hypothesis

According to the hypothesis, the acquisition of grammatical structures proceeds in a predicted progression. Certain grammatical structures or morphemes are acquired before others in first language acquisition and there is a similar natural order in SLA. The average order of acquisition of grammatical morphemes for English as an 'acquired' language is given below:

-Ing--------Aux---------Irregular------Regular Past
Plural----->Article---->Past---------->3rd Sing.
Copula--------------------------------Possessive

The implication of natural order is not that second or foreign language teaching materials should be arranged in accordance with this sequence but that acquisition is subconscious and free from conscious intervention (Ellidokuzoglu, 1992).

(3) The Input Hypothesis

This hypothesis relates to acquisition, not to learning. Krashen claims that people acquire language best by understanding input that is a little beyond their present level of competence. Consequently, Krashen believes that 'comprehensible input' (that is, i + 1) should be provided. The 'input' should be relevant and 'not grammatically sequenced'. The 'input' should also be in sufficient quantity as Richards pointed out:


".. child acquirers of a first language are provided with samples of 'caretaker' speech, rough - tuned to their present level of understanding, ..[and] adult acquirers of a second language [should be] provided with simple codes that facilitate second language comprehension."
(Richards, J. 1986:133)


(4) The Monitor Hypothesis

As is mentioned, adult second language learners have two means for internalizing the target language. The first is 'acquisition' which is a subconscious and intuitive process of constructing the system of a language. The second means is a conscious learning process in which learners attend to form, figure out rules and are generally aware of their own process. The 'monitor' is an aspect of this second process. It edits and make alterations or corrections as they are consciously perceived. Krashen believes that 'fluency' in second language performance is due to 'what we have acquired', not 'what we have learned': Adults should do as much acquiring as possible for the purpose of achieving communicative fluency. Therefore, the monitor should have only a minor role in the process of gaining communicative competence. Similarly, Krashen suggests three conditions for its use: (1) there must be enough time; (2) the focus must be on form and not on meaning; (3) the learner must know the rule.

(5) The Affective Filter Hypothesis

The learner's emotional state, according to Krashen, is just like an adjustable filter which freely passes or hinders input necessary to acquisition. In other words, input must be achieved in low-anxiety contexts since acquirers with a low affective filter receive more input and interact with confidence. The filter is 'affective' because there are some factors which regulate its strength. These factors are self-confidence, motivation and anxiety state.