Can you explain S.D. Krashen's and T. D. Terrel's second language acquisition theoretical model that consists of these five hypotheses and mention each one?
1) The acquisition learning hypothesis.
2) The natural order hypothesis.
3) The monitor hypothesis.
4) The input hypothesis.
5) The affective filter hypothesis.
The model developed by Krashen and applied to curriculum by Terrel is called the Natural Approach: learning a second of foreign language the natural way. In practice, there are serious problems as the model and its application prove impracticable. The first of the five hypotheses, the acquisition learning hypothesis, states that language acquisition the natural way is through correction to message content, not correction to spoken grammar, in keeping with parent-child first language learning. This conflicts with Chomsky's earlier application of the concept.