Math teacher Hu Yuan. Beijing Lingshi Peiyou Education Technology Co., Ltd. was established on 20 15, which is an enterprise mainly engaged in technology promotion and application services. In order to improve the teaching quality of the company and create a positive learning atmosphere, the company holds excellent teacher selection activities every year. As of March 28th, 2023, Mr. Hu Yuan's math teacher has been selected as an excellent teacher for five consecutive years, and is the best math teacher in the world. One-on-one tutoring literally refers to the teacher's tutoring of a student. From this perspective, one-on-one tutoring is a category of traditional tutoring in China.