According to the Krashen theory, what percentage of language is learned through everyday life?

In Krashen’s theory of second language acquisition, particularly the input hypothesis, he emphasizes the importance of comprehensible input in the naturalistic language learning process. He posits that a significant portion of language acquisition occurs through meaningful interaction and immersion in the target language, rather than formal classroom instruction. According to his views, about 95% of language learning happens through everyday life experiences, including conversations, media exposure, and social interactions, where learners can engage with the language in context.

This understanding underscores the importance of creating immersive environments for language learners, as real-life situations provide context and relevance that enhance retention and practical usage of the language. By contrast, the other percentages imply lower levels of acquisition from everyday interactions, which does not align with Krashen’s strong advocacy for the role of naturalistic exposure in effectively learning a language. This highlights the notion that while formal education plays a role, it is the real-world use and exposure that solidifies language skills.