Educational lectures are structured presentations designed to convey information on a specific subject. They are commonly used in settings like schools, universities, and professional development programs. Lectures can cover a wide range of topics, from science and history to literature and mathematics, and are often delivered by knowledgeable instructors or guest speakers. During a lecture, the speaker typically presents key concepts, theories, and examples to help the audience understand the material. Visual aids, such as slides or videos, may be used to enhance learning. Lectures encourage active listening and can be followed by discussions or questions to deepen understanding.