Yi Sitang is very famous in mathematics. His family is famous for mathematics. Many children from Yucai Headquarters and Wenhe come to study. The teacher gave a lively lecture. After the on-site examination, the topic was mainly what he said, and the effect was very obvious, which was recognized by many parents. Yisitang Education is a remedial class run by Xixian 188 xu teacher. It used to be mathematics, but now it has developed into an educational institution for English, Chinese and programming.