As the housekeeper of extracurricular education in primary and secondary schools, Dr. Zhu adopts the O2O (online to offline) education model, which covers many contents of extracurricular tutoring for students aged 5- 16. Dr. Zhu independently developed a number of teaching, teacher training and campus management systems, such as home-school safety management, comprehensive courses of subject quality, personalized learning programs, intelligent learning platforms and campus management software. Relying on PDCA teaching method, Dr. Zhu focuses on shaping children's learning ability and cultivating children's time management ability. By using O2O technology, Dr. Zhu has created a new immersion learning model for primary and secondary school students aged 5- 16, which integrates tutoring, curriculum and quality education.

2. Sixue Sixue was established in 2003. It is an extracurricular tutoring institution for primary and secondary schools, which mainly focuses on primary school Olympics. 10 for many years, learning and thinking have been concentrated in the field of primary and secondary education. However, prices have risen frequently in recent years. In addition, the orientation of learning and thinking is mainly to "cultivate excellent students", that is, to cultivate students with better grades. On the other hand, because the course is too difficult, it is of little help to students who are not top-notch in grade three and grade three.