Children representatives from south China's Hainan Province display their investigation results by dancing at the June 1 International Children's Forum held in Beijing, capital of China, on June 1, 2019. About 120 representatives of Chinese and foreign children and teachers took part in the forum on Saturday. [Xinhua/Zhang Yuwei]

A boy from Tianjin displays his investigation results by playing Kuaiban, a form of Chinese storytelling accompanied by bamboo clappers, at the June 1 International Children's Forum held in Beijing, capital of China, on June 1, 2019. About 120 representatives of Chinese and foreign children and teachers took part in the forum on Saturday. [Xinhua/Zhang Yuwei]

Children representatives from east China's Shanghai display their investigation results on wetland ecology at the June 1 International Children's Forum held in Beijing, capital of China, on June 1, 2019. About 120 representatives of Chinese and foreign children and teachers took part in the forum on Saturday. [Xinhua/Zhang Yuwei]

Children representatives from southwest China's Sichuan Province speak at the June 1 International Children's Forum held in Beijing, capital of China, on June 1, 2019. About 120 representatives of Chinese and foreign children and teachers took part in the forum on Saturday. [Xinhua/Zhang Yuwei]

Children representatives from Beijing display their teamwork at the June 1 International Children's Forum held in Beijing on June 1, 2019. About 120 representatives of Chinese and foreign children and teachers took part in the forum on Saturday. [Xinhua/Zhang Yuwei]