Nothing.
Today, i taught 4 classes. 2 of all r very noisy. They wanted to drink drink and drink. They can not focus on the lesson. I and Mike, both of us r bored. We can not controlled them. That's pity awwwwI try to talk with my that they were kids. And I used to be them so I can understand. But that's terrible when I can not discribe what i think. awwww…