This document discusses the use of language corpora in language teaching and learning. It defines a language corpus as a collection of real-world language samples, such as written texts, oral transcriptions, audio or video tutorials. Corpora can be used to design syllabi, develop teaching materials, and design classroom activities. Specifically, written corpora can help students distinguish typical from atypical word usage and improve spelling and grammar. Audio/visual corpora can improve listening skills by exposing students to pronunciation variations. Data-driven learning uses corpus findings to inform how language aspects are typically used so students can apply them in speaking and writing. Corpora provide benefits like a more accurate description of language than textbooks and exposure to meaningful, contextualized real