One drastic way of teaching

The drastic way of teaching English was introduced on the TV program.There was one English teacher who used to be very strict in the class for his students that didn't work well by offending them on the contrary.However,there was one turning point in his life that drastically change his style when he met one young teacher who teaches like playing games.Since then he started to introduce new style positively like letting some excellent students play a teacher's role instead.I definitely agree with this idea because we can learn many precious things from teaching others.