How much is the student teacher doing? Usually they don't do full-out teaching for a while. Is the current teacher correcting whatever bad habits/things the student teacher is doing, and what are they doing? Generally, I thought that the purpose of student teaching is to have practice teaching but with the actual teacher watching and stepping in as needed.
I hope this all works about; I know this year's just been disastrous for your son with this counselor! ((hugs))
And in all seriousness, can you get another counselor?!