Stephen D. Krashen

Stephen D. Krashen is a linguist and educational researcher known for his work on language acquisition and learning. He distinguishes between two processes: "acquisition," which is natural, subconscious learning similar to how children learn their first language, and "learning," which is formal, conscious study of grammar and vocabulary. Krashen argues that successful language learning primarily occurs through meaningful exposure and communication, rather than through explicit instruction. His ideas influence language teaching methods, emphasizing immersive, context-rich experiences to foster genuine language acquisition.