1. Strict teacher recruitment and training system: The head office has one-to-one strict teacher recruitment standards and training procedures to ensure that all teachers on the job have corresponding teaching qualifications and teaching abilities, including the requirements for teachers' academic qualifications and teacher qualification certificates, and regularly train and assess teachers.

2. Transparent and public display of teachers: The company displays the educational background, teaching experience and other information of its teachers in detail for students and parents to refer to when choosing teachers. This transparency can reduce the possibility of misunderstanding and misinformation.

3. Zhangmen 1 dui 1 is a domestic online 1 dui 1 education brand, which focuses on providing high-quality online 1 dui 1 customized education services for teenagers aged 4- 18. The predecessor of this educational institution is the Champion Club jointly founded by Tsinghua, Peking University, Jiaotong University, Zhejiang University and Fudan University. Since its establishment in 2005, it has experienced many strategic adjustments and brand upgrades.