A boy looks into a kaleidoscope at a barter fair held in a kindergarten in Wuxi City, east China's Jiangsu Province, May 29, 2010. As the International Children's Day draws near, a total of 460 children took part in the barter fair with their parents on Saturday. By exchanging the used toys and books, children learnt more about low-carbon life style. [Xinhua]

Children exchange their articles at a barter fair held in a kindergarten in Wuxi City, east China's Jiangsu Province, May 29, 2010. As the International Children's Day draws near, a total of 460 children took part in the barter fair with their parents on Saturday. By exchanging the used toys and books, children learnt more about low-carbon life style. [Xinhua]