The document discusses different types of effective teacher talking time (TTT) that can promote student language learning. It argues that TTT is important for setting up classroom dynamics and experiences that improve student talking time (STT). It provides examples of good TTT, including: 1) chatting with students to introduce new language, 2) using the "explain, exemplify, expand" approach to vocabulary, and 3) asking questions that generate student language use rather than just understanding meanings. The document advocates for modeling language use, exploiting exercises to explore usage, and re-eliciting remembered text language over time.