I agree with Blonde. :) You should go to her supervisor, unless she own's the business and IS the boss. If that is the case then you need to sit her down and have a mature conversation with her that you need assistance when tutoring. That is too many people for you to e able to offer the one-on-one focus the students deserve.
Also you could let her know that the state does not allow one person to be with that many students at one time in a school setting and in a tutoring session you should follow state guidelines. (In GA anyhow a teacher can only have 10 students alone tops in a classroom.) As well the parents would not be happy to know their children are not getting as much individual help.
All-in-all it's just not good business.
at 7:01 PM on Nov. 14, 2010