Stephen Krashen’s Theory of Second Language Acquisition there are five
Acquisition-Learning hypothesis
Monitor hypothesis
Natural order hypothesis
Input hypothesis
Affective filter hypothesis
The correct answer and explanation is :
Stephen Krashen’s Theory of Second Language Acquisition consists of five key hypotheses:
- Acquisition-Learning Hypothesis – Krashen differentiates between language acquisition and language learning. Acquisition is a subconscious process, similar to how children pick up their first language, whereas learning is a conscious process that involves formal instruction and knowledge of rules. He argues that acquisition leads to fluency, while learning only helps as a monitor for correctness.
- Monitor Hypothesis – This hypothesis states that conscious learning acts as a “monitor” that checks and corrects language use. However, Krashen believes that the monitor should not be overused, as excessive focus on correctness can hinder fluency and communication. Effective monitoring requires three conditions: time, focus on form, and knowledge of rules.
- Natural Order Hypothesis – This hypothesis suggests that language learners acquire grammatical structures in a predictable order, regardless of their first language or formal instruction. Some structures are learned earlier, while others come later, and this sequence cannot be changed significantly through teaching.
- Input Hypothesis – Krashen emphasizes that language acquisition occurs when learners receive comprehensible input slightly above their current level (i+1). If the input is understandable and meaningful, learners will naturally acquire the language without explicit instruction. He highlights the importance of reading and listening to engaging content.
- Affective Filter Hypothesis – Emotional factors such as motivation, self-confidence, and anxiety influence language acquisition. A high affective filter (e.g., anxiety or fear of making mistakes) can block input and slow down learning, while a low affective filter promotes effective language acquisition.
Krashen’s theory underscores the importance of meaningful communication and natural exposure to language rather than rote memorization or grammar drills. His work has influenced language teaching methodologies worldwide, emphasizing immersive, low-stress environments for learners.