This document discusses teacher talking time (TTT) and student talking time (STT) in language classrooms. TTT refers to the amount of time teachers spend talking, while STT is the time students spend talking. Too much TTT can make lessons teacher-centered and prevent students from practicing speaking. The document provides tips for teachers to limit TTT, such as waiting for student responses rather than answering themselves. It also discusses when some TTT could be beneficial, such as when students are tired. Three videos on the topic are shared for homework viewing. The document concludes that while reducing TTT is important, it also depends on classroom culture and expectations.