Students from Shanghai Yuannan Middle School present Wunijing cotton textile weaving techniques, Shanghai, April 26, 2012. More than 50 students from seven middle schools in Shanghai show the traditional skills they have learnt recently, which are included on the UNESCO List of the Intangible Cultural Heritage. [Photo/Xinhua]

Students from Shanghai Yuannan Middle School play Jiangnan sizhu, a kind of traditional Chinese musical instrument, Shanghai, April 26, 2012. More than 50 students from seven middle schools in Shanghai show the traditional skills they have learnt recently, which are included on the UNESCO List of the Intangible Cultural Heritage. [Photo/Xinhua]

Students from Shanghai Yuannan Middle School show their embroidery skills, Shanghai, April 26, 2012. More than 50 students from seven middle schools in Shanghai show the traditional skills they have learnt recently, which are included on the UNESCO List of the Intangible Cultural Heritage. [Photo/Xinhua]