The document discusses the lecture-cum-demonstration method, which combines lecture and hands-on demonstration to teach subjects like experiments. It involves the teacher planning lessons, introducing topics, presenting subject matter, demonstrating experiments, and discussing both theoretical and practical knowledge to foster better understanding and longer retention compared to only lecture. While more engaging for students, it requires more preparation from teachers and may not be suitable for large classes. Proper classroom setup and experiment management is important for effective use of this method.