unwanted login in the school meeting

Dear All,

 wanted help in one regard.

 My son's school uses Zoon for daily teaching. there is one student who probably login in 2 different devices and disturbs the class with his objectionable background, chats etc. since he logs in with different student name its difficult to find out who he is. I am trying to help school to try to find out how can we track the student. school uses licenced copy .

any guidance in this regard is appreciated.