Washington Yu Ying Public Charter School | 991 followers on LinkedIn. Inspiring and preparing young people to create a better world | From day one, when Yu Ying opened our doors to the first 130 students, we were the only public or private school of our kind in the Washington, D.C. metropolitan area. Demand for Yu Ying’s innovative program has grown every year since, resulting in more than 600 applications for about 50 spots in the 2012-13 entrance lottery. Yu Ying utilizes the International Baccalaureate (IB) Primary Years Programme in a dual English and Mandarin Chinese immersion environment and currently serves students from Pre-K to 5th grade.