U.S. first lady Michelle Obama practices tai chi with students at Chengdu No.7 High School in Chengdu in southwest China's Sichuan province, March 25, 2014.
U.S. first lady Michelle Obama looks at a terracotta warrior as she visits Qinshihuang Terracotta Warriors and Horses Museum with her daughters, Malia and Sasha, and her mother, Marian Shields Robinson, in Xi'an, March 24, 2014.
U.S. first lady Michelle Obama walks with her daughters Malia and Sasha as they visit the Mutianyu section of the Great Wall of China, March 23, 2014.
U.S. first lady Michelle Obama speaks next to U.S. Ambassador to China Max Baucus as they attend a round table discussion on education at the U.S. Embassy in Beijing, March 23, 2014.