One school, one teacher, one student

Sweat dripping from her forehead, teacher Li Yufen slowly walked up the stairs to the second floor of her building. On her back was Fan Yu, a 9-year-old pupil who suffers from congenital heart disease.

It is a scene that has taken place many times over the last two years at Tianxin Elementary School near Lianzhou, Guangdong province, where Li is well known as "the teacher with a loving heart".

There are only four grades in the school, so pupils then have to find somewhere else to study.