Zhang yang :point: they have different educational methods. evidence: sure they had a teacher, but it wasn't a regular teacher. it was a man.
explanation: the phrase "it wasn't a regular teacher" immediately clues the reader fact that they don't have real teachers to teach them in real life.
link: online class is relatively more boring, machine teacher class just repeat reading textbooks and PPT, and ignore the feelings of students, such a formal online class will not be welcomed by students, so in the text, their don't like to go to study.