Lecture is a one-way method where learners are passive listeners. Hence, content delivery in a lucid language is essential for desired learning to take place. Discussion in groups has to be centred on the theme with active participation of participants for best outcome. Brainstorming is aimed at pooling of maximum possible ideas generated by the members of the group. Programmed instruction is not limited to use of teaching aids; its basic principle is step wise instruction based on feedback after every step.