The correct answer is Demonstration method. A demonstration is a teacher-centered instructional strategy where the teacher shows or explains a process, skill, or concept to students. In this method, the teacher is the primary active participant, performing the action while students observe and learn passively. The flow of information and activity largely originates from the teacher, making it a classic example of a teacher-centered approach. It is effective for clearly illustrating procedures, experiments, or complex ideas in a controlled environment.
Option A, Project-based learning, is incorrect because it is a student-centered approach where students actively explore real-world problems and challenges over an extended period, taking ownership of their learning. Option B, Flipped classroom, is incorrect as it shifts traditional lecture delivery to outside of class, using class time for more interactive, student-centered activities and application, making it a student-centered strategy. Option D, Peer tutoring, is incorrect because it involves students teaching other students, which is a highly student-centered and collaborative learning strategy, promoting active engagement and mutual support among learners rather than direct teacher instruction.