The implication of Krashen's Natural Order Hypothesis for language teaching is that:
Language structures should not necessarily be taught in a strict grammatical sequence, because learners acquire them in a predictable natural order regardless of instruction.
Krashen's Natural Order Hypothesis states that:
Grammatical structures are acquired in a predictable sequence.
This order is not influenced significantly by explicit teaching.
For example, learners might acquire the plural -s before the third person singular -s, even if the latter is taught first.
Teaching Implication:
Teachers should:
Focus more on providing comprehensible input (rich, meaningful language exposure).
Avoid forcing learners to produce grammar they have not yet acquired naturally.
Accept that some errors are part of the normal developmental sequence and cannot be corrected through teaching alone.