The lecture method is a teaching method where the teacher talks to students to clarify knowledge, facts, and principles. It primarily functions to provide information. There are two steps to a lecture - planning and delivery. In planning, the teacher prepares objectives, content, and visual aids. Delivery involves three phases - a warm-up to engage students, a development phase where the teacher explains concepts, and a consolidation phase where the teacher summarizes key points. While lectures allow one teacher to educate many students economically, they risk students not actively listening or understanding and limit interaction.