Thanks to Dr Vijay Govindarajan of Vellore, I had the providence of viewing his simplistic teaching tool. With the advent of modern audio visual teaching aid classic black board teaching is a forgotten art. It has been ages since i have written something on a board. After seeing this video i really want to go back to old ways………Classic Black Board Teaching. Now lets sit back and enjoy one of his demonstration of making a larynx …..Yes with a piece of paper and your very own hand.