Various ways can be employed for teaching large number of students in a single class .Traditional and most common method is teaching by chalk & blackboard. But now various type of Audio- Visual Aids available –over head projector ,speakers ,microphone ,laptop ,LCD Projector .These Audio-Visual aids are very useful and helpful to teaching a large class where from last some benches ,it is not possible to visualize diagram of blackboard and listen the lecture properly.AIM – Time change everything, now in a single class room ,number of student become much more then past time .So how a teacher draw more and more and powerful attention of a large no. of students? Most probably by using these new more effective methods –like power point presentation. Materials & Methods - 150 students in a single class room of different medical college, taught by traditional and new methods. Result –Student pay more attention when teacher use projector. It is not possible to visualize backboard by back-benchers. Conclusion –Because now days students strength increases in a class, so a teacher always use Audio-Visual Aids to take lecture.
