Wei Dongyi usually holds a big bottle of water and a bag of steamed bread （馒头）. He is a little shy of speaking, Wei is an assistant professor （助教） at Peking University. He is popular on line. He looks different from other teachers.
In a video, a reporter asked Wei to say something to high school students who were taking the gaokao. He simply said, "Welcome to Peking University. I don't know whatelse to say."
Wei said he was a teacher at the university and went to Peking University in 2010. He didn't take the gaokao because he did well in math competition （竞赛） when he was in high school. Wei twice won gold medals at the International Mathematical Olympiad while he was a high school student.
Wei finished Peking University in 2014. Zhang Yonghua, a math teacher at Wei's old high school, believes Wei as a math genius. "He is good at math and works hard. He often found better ways to work out math problems than his teachers", Zhang said.
