This document introduces the distinction between language acquisition and language learning. Language acquisition is a subconscious process that occurs naturally through meaningful use and interaction, similar to how children learn their first language. It results in an intuitive feel for the language. Language learning is a conscious process that involves formal study and attention to rules. It provides explicit knowledge about the language. The key difference is that acquisition is implicit while learning is explicit. Formal teaching helps learning but does not necessarily help acquisition, as acquisition relies on natural communication rather than focus on form.