Running on the roof and ideas in a garden

"Our school is like a mini technology park," says Yang Hongying, headmaster of New Jindai Primary School in Liangping district, Chongqing.

"Our students can learn the concepts of green development from special designs."

The designs Tang talks of are found in a rural school that looks vastly different to most other primary schools. For a start, a running track it has is on a roof to save space, and there is a 3,000-square-meter vegetable garden in the center of the campus.