Because the conversation so we can actually put it to use. Should be trained to have guts showing off. Confidence in speaking before the dialog and then give priority to the core language.
Because the practice of dialogue that we can put into practice. It should also be trained to be assertive. The confidence to talk back and then to focus on the core language.
Because the practice of the dialogue, we can be used in practice. Should be trained to be assertive Confidence in speaking interact first, and then focus on the grammar.