The document discusses effective questioning techniques for teachers in English as a foreign language (EFL) classrooms. It outlines different types of questions, including display vs. referential questions, and a taxonomy of questions ranging from literal comprehension to appreciation. The role of questions in EFL classes is to promote classroom interaction, feedback, and communication. Effective questions minimize teacher talking time while maximizing student thinking and involvement. Questions should also be cognitively challenging but time-effective. Problematic questions risk embarrassment or do not elicit helpful responses.