The world's smallest school, an elementary school in China, has just one teacher and one student:

He explained: "At first, the school had more than 400 students, but in the '90s, more and more families migrated from the mountain village to make a living outside, and there were just over 10 students left.

"In 2000, the city education bureau decided to shut down the school after the graduation of the last student. New kids can register and board at another school in nearby Sanhe town, which is a two-hour drive away."

But the family of a third grader named Han Hongyang can't afford the boarding fee, so she became the last remaining student.

"We have been like this for more than half a year. She is my only student, and I'm her only teacher," says teacher Li.

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