The document discusses the advantages and disadvantages of teacher talking time (TTT) and student talking time (STT). While the teacher is important for modeling language and giving instructions, high levels of student talking time make classes more interesting, motivating, and help students learn more quickly. Both TTT and STT have benefits - TTT allows the teacher to explain things to the class, while STT helps students develop skills through practice. However, too much TTT limits student speaking practice, while too much STT can make the classroom noisy and difficult to manage. In conclusion, talk time should be balanced between teacher and students so learning objectives are met.