The sums add up in Qianjiang, a city of struggling factories and one million people set in the center of the country. Basic pay runs about 1,000 yuan, or $160, a month for an entry-level teacher and goes to three times that amount for a veteran, Yao said.
"This isn't bad for teachers," said Yao. "An English teacher probably wouldn't take it. They can earn extra money giving private tutoring. But gym teachers can't do the tutoring. Besides, their superiors have told them to do this. They can't not do it."
"I have many acquaintances. Some of them work in police stations," Yao said. "They tell me 'Really we could use a Yao Lifa. If we had one, we could make more money.'"